{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"banking-markets","screenKey":"us-county-bank-branch-deposits","screenLabel":"County FDIC-insured branch deposits","history":true,"temporalCoverage":{"firstYear":2015,"latestYear":2025,"yearCount":11},"years":[2015,2016,2017,2018,2019,2020,2021,2022,2023,2024,2025],"metricLabel":"County deposit HHI","metricUnit":"HHI (0-10,000)","summary":{"firstYear":2015,"latestYear":2025,"latestYearCountyCount":3104,"observationCount":34193,"observationsByYear":[{"countyCount":3112,"year":2015},{"countyCount":3108,"year":2016},{"countyCount":3108,"year":2017},{"countyCount":3109,"year":2018},{"countyCount":3111,"year":2019},{"countyCount":3110,"year":2020},{"countyCount":3109,"year":2021},{"countyCount":3109,"year":2022},{"countyCount":3108,"year":2023},{"countyCount":3105,"year":2024},{"countyCount":3104,"year":2025}],"yearCount":11},"source":{"accessDate":"2026-07-20","apiUrl":"https://api.fdic.gov/banks/sod?filters=YEAR%3A%5B2015%20TO%202025%5D&fields=YEAR%2CCERT%2CNAMEFULL%2CSTALPBR%2CSTNAMEBR%2CSTCNTYBR%2CCNTYNAMB%2CDEPSUMBR%2CRSSDHCR%2CNAMEHCR","confidenceLevel":"high","dataStatus":"estimated_public","id":"fdic-sod-2025","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","publisher":"Federal Deposit Insurance Corporation","title":"Annual Summary of Deposits, 2015-2025","url":"https://banks.data.fdic.gov/bankfind-suite/SOD","profileHref":"/sources/fdic-sod-2025"},"guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth.","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","matchedCount":11,"count":11,"filters":{"states":[],"statesMatched":true,"matchedStateCodes":[],"county":null,"countyMatched":null,"fips":"19121","fipsMatched":true,"fipses":[],"fipsesMatched":null,"matchedFipses":[],"unmatchedFipses":[],"selectionOrder":false,"history":"true","historyMatched":true,"from":2015,"fromMatched":true,"to":2025,"toMatched":true,"rangeMatched":true,"query":null,"concentrationClass":null,"concentrationClassMatched":true,"source":null,"sourceMatched":null,"year":null,"yearMatched":null,"sort":"year","sortMatched":true,"order":"asc","orderMatched":true,"limit":null,"limitMatched":true},"availableSorts":["year","hhi","leader_share","organizations","branches","deposits","county"],"availableConcentrationClasses":["unconcentrated","moderately_concentrated","highly_concentrated"],"rows":[{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1982,"hhi":3318,"hhiPercentile":64.9,"hhiRank":1092,"leadingOrganization":"FARMERS & MERCHANTS BANCORP","leadingOrganizationSharePct":46.5,"leaderShareRank":1094,"organizationCount":4,"organizationDepthRank":2016,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":20,"stateMedianHhi":2249,"stateName":"Iowa","totalDepositsThousands":279443,"year":2015,"annualCountyCount":3112,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1921,"hhi":3320,"hhiPercentile":64.6,"hhiRank":1100,"leadingOrganization":"FARMERS & MERCHANTS BANCORP","leadingOrganizationSharePct":47,"leaderShareRank":1085,"organizationCount":4,"organizationDepthRank":2009,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":19,"stateMedianHhi":2358,"stateName":"Iowa","totalDepositsThousands":299205,"year":2016,"annualCountyCount":3108,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":5,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1916,"hhi":3291,"hhiPercentile":63.5,"hhiRank":1136,"leadingOrganization":"FARMERS & MERCHANTS BANCORP","leadingOrganizationSharePct":46.8,"leaderShareRank":1109,"organizationCount":4,"organizationDepthRank":2000,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":23,"stateMedianHhi":2327,"stateName":"Iowa","totalDepositsThousands":308176,"year":2017,"annualCountyCount":3108,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1935,"hhi":3217,"hhiPercentile":62,"hhiRank":1182,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":46,"leaderShareRank":1152,"organizationCount":4,"organizationDepthRank":1990,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":26,"stateMedianHhi":2358,"stateName":"Iowa","totalDepositsThousands":308565,"year":2018,"annualCountyCount":3109,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1858,"hhi":3231,"hhiPercentile":61.5,"hhiRank":1199,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":46.4,"leaderShareRank":1138,"organizationCount":4,"organizationDepthRank":1977,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":25,"stateMedianHhi":2437,"stateName":"Iowa","totalDepositsThousands":335723,"year":2019,"annualCountyCount":3111,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1916,"hhi":3173,"hhiPercentile":60.2,"hhiRank":1238,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":44.8,"leaderShareRank":1240,"organizationCount":4,"organizationDepthRank":1971,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":27,"stateMedianHhi":2364,"stateName":"Iowa","totalDepositsThousands":358389,"year":2020,"annualCountyCount":3110,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1937,"hhi":3125,"hhiPercentile":58,"hhiRank":1306,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":44.1,"leaderShareRank":1319,"organizationCount":4,"organizationDepthRank":1949,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":28,"stateMedianHhi":2346,"stateName":"Iowa","totalDepositsThousands":393517,"year":2021,"annualCountyCount":3109,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1908,"hhi":3073,"hhiPercentile":56.4,"hhiRank":1357,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":42.3,"leaderShareRank":1449,"organizationCount":4,"organizationDepthRank":1938,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":30,"stateMedianHhi":2513,"stateName":"Iowa","totalDepositsThousands":426828,"year":2022,"annualCountyCount":3109,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1899,"hhi":2991,"hhiPercentile":54.1,"hhiRank":1429,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":41.4,"leaderShareRank":1520,"organizationCount":4,"organizationDepthRank":1931,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":35,"stateMedianHhi":2545,"stateName":"Iowa","totalDepositsThousands":423930,"year":2023,"annualCountyCount":3108,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1921,"hhi":3111,"hhiPercentile":56.9,"hhiRank":1338,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":43.6,"leaderShareRank":1364,"organizationCount":4,"organizationDepthRank":1937,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":28,"stateMedianHhi":2607,"stateName":"Iowa","totalDepositsThousands":423943,"year":2024,"annualCountyCount":3105,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."},{"branchCount":6,"concentrationClass":"highly_concentrated","countyFips":"19121","countyName":"Madison","depositRank":1891,"hhi":3180,"hhiPercentile":57.8,"hhiRank":1312,"leadingOrganization":"FARMERS AND MERCHANTS BANCORP","leadingOrganizationSharePct":45.3,"leaderShareRank":1302,"organizationCount":4,"organizationDepthRank":1929,"organizationsOver5pct":4,"profileHref":"/geographies/banking/19121","stateCode":"IA","stateCountyCount":99,"stateHref":"/geographies/iowa","stateHhiRank":30,"stateMedianHhi":2609,"stateName":"Iowa","totalDepositsThousands":447697,"year":2025,"annualCountyCount":3104,"sourceId":"fdic-sod-2025","sourceTitle":"Annual Summary of Deposits, 2015-2025","sourcePublisher":"Federal Deposit Insurance Corporation","sourceUrl":"https://banks.data.fdic.gov/bankfind-suite/SOD","sourceProfileHref":"/sources/fdic-sod-2025","accessDate":"2026-07-20","dataStatus":"estimated_public","confidenceLevel":"high","methodologyNote":"Antitrust Radar independently aggregates each annual June 30 Summary of Deposits vintage from 2015 through 2025 using the FDIC-reported top bank holding company when available and otherwise the insured institution certificate. No values are interpolated across missing or changed geographies.","methodologyHref":"/methodology#county-banking-screen","guardrail":"Annual county rows are independent June 30 branch-deposit screens, not interpolated observations or legal market definitions. Reported ownership structures, branch booking, county names, and FIPS boundaries can change between vintages; deposit values are nominal and should not be read as inflation-adjusted growth."}]}