{"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. 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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":"23017","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":16,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1206,"hhi":2116,"hhiPercentile":35.8,"hhiRank":2000,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":36.9,"leaderShareRank":1658,"organizationCount":7,"organizationDepthRank":1233,"organizationsOver5pct":7,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":12,"stateMedianHhi":2652,"stateName":"Maine","totalDepositsThousands":604486,"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. 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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":16,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1202,"hhi":2170,"hhiPercentile":36.8,"hhiRank":1966,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":37.6,"leaderShareRank":1615,"organizationCount":7,"organizationDepthRank":1215,"organizationsOver5pct":7,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":12,"stateMedianHhi":2667,"stateName":"Maine","totalDepositsThousands":619366,"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":16,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1210,"hhi":2110,"hhiPercentile":34.5,"hhiRank":2038,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":36.6,"leaderShareRank":1705,"organizationCount":7,"organizationDepthRank":1202,"organizationsOver5pct":7,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":12,"stateMedianHhi":2828,"stateName":"Maine","totalDepositsThousands":632328,"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":16,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1166,"hhi":2132,"hhiPercentile":35,"hhiRank":2023,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":37.5,"leaderShareRank":1662,"organizationCount":7,"organizationDepthRank":1192,"organizationsOver5pct":7,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":12,"stateMedianHhi":2901,"stateName":"Maine","totalDepositsThousands":691541,"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":15,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1177,"hhi":2012,"hhiPercentile":31.5,"hhiRank":2131,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":35.2,"leaderShareRank":1830,"organizationCount":7,"organizationDepthRank":1189,"organizationsOver5pct":7,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":14,"stateMedianHhi":3039,"stateName":"Maine","totalDepositsThousands":694661,"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":13,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1216,"hhi":2238,"hhiPercentile":36.9,"hhiRank":1963,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":39.1,"leaderShareRank":1610,"organizationCount":7,"organizationDepthRank":1168,"organizationsOver5pct":7,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":12,"stateMedianHhi":2944,"stateName":"Maine","totalDepositsThousands":750604,"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":13,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1160,"hhi":2173,"hhiPercentile":34.4,"hhiRank":2042,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":38.2,"leaderShareRank":1695,"organizationCount":7,"organizationDepthRank":1148,"organizationsOver5pct":6,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":14,"stateMedianHhi":2635,"stateName":"Maine","totalDepositsThousands":890611,"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":12,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1120,"hhi":2249,"hhiPercentile":35.9,"hhiRank":1995,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":38.5,"leaderShareRank":1690,"organizationCount":7,"organizationDepthRank":1128,"organizationsOver5pct":6,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":13,"stateMedianHhi":2735,"stateName":"Maine","totalDepositsThousands":996917,"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":11,"concentrationClass":"moderately_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1112,"hhi":2437,"hhiPercentile":40.9,"hhiRank":1837,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":41.6,"leaderShareRank":1494,"organizationCount":7,"organizationDepthRank":1130,"organizationsOver5pct":7,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":12,"stateMedianHhi":2901,"stateName":"Maine","totalDepositsThousands":976571,"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":11,"concentrationClass":"highly_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1019,"hhi":2566,"hhiPercentile":44.3,"hhiRank":1731,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":43.6,"leaderShareRank":1364,"organizationCount":7,"organizationDepthRank":1133,"organizationsOver5pct":6,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":12,"stateMedianHhi":3095,"stateName":"Maine","totalDepositsThousands":1132674,"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":11,"concentrationClass":"highly_concentrated","countyFips":"23017","countyName":"Oxford","depositRank":1018,"hhi":2948,"hhiPercentile":52.9,"hhiRank":1464,"leadingOrganization":"NORWAY BANCORP, MHC","leadingOrganizationSharePct":47.8,"leaderShareRank":1184,"organizationCount":7,"organizationDepthRank":1119,"organizationsOver5pct":5,"profileHref":"/geographies/banking/23017","stateCode":"ME","stateCountyCount":16,"stateHref":"/geographies/maine","stateHhiRank":11,"stateMedianHhi":3312,"stateName":"Maine","totalDepositsThousands":1161147,"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."}]}