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Canonical indicator / county-bank-deposit-hhi

County bank-deposit HHI

HHI calculated from 2025 FDIC branch deposits within each county or county equivalent, grouped to reported top holding companies or insured institutions.

Geographic screensHHI (0-10,000)Calendar or release year2025

Snapshot median

2,826Middle of 3,104 bounded observations
Observations
3,104
3,104 bounded entities
Coverage
2025
1 observed period
Sources
1
Federal Deposit Insurance Corporation
Exact pair
r 0.974
3,104 entity-period matches
Indicator dossierCounty bank HHI3,104 observations / 2025

01 / Measurement contract

Definition before comparison

The unit, universe, period, and source boundary travel with every observation.

What this series measures

HHI calculated from 2025 FDIC branch deposits within each county or county equivalent, grouped to reported top holding companies or insured institutions.

County rows are screens of positive FDIC Summary of Deposits branch balances grouped to the reported top bank holding company when available and otherwise to the insured institution. Branch-reported deposits may not represent where every customer lives or competes, county boundaries may not match a banking market, deposits are not every banking product, and these screens are not legal market definitions.
Indicator ID
county-bank-deposit-hhi
Unit
HHI (0-10,000)
Observation dimension
County screen
Grouping field
State
Period basis
Calendar or release year
Ranking contract
Use the latest available row for each entity

02 / Observed variation

Entity distribution and ranked anchors

2025; absent and withheld values do not enter the distribution.

Minimum
509
25th percentile
1,899.5
Median
2,826
75th percentile
4,358.5
Maximum
10,000

Observed variation

Each view keeps the same indicator, unit, and evidence boundary.
Selected interval1,458.1 to 2,407.2838 observations / 27.0% of the snapshot
Ranked reference rowsHHI (0-10,000)
  1. 01Alcona, MI26001 / 202510,000
  2. 02Aleutians West, AK02016 / 202510,000
  3. 03Alexander, IL17003 / 202510,000
  4. 04Alger, MI26003 / 202510,000
  5. 05Allendale, SC45005 / 202510,000
  6. 06Armstrong, TX48011 / 202510,000
  7. 07Baker, GA13007 / 202510,000
  8. 08Banner, NE31007 / 202510,000
  9. 3103Wright, MN27171 / 2025662
  10. 3104Johnson, KS20091 / 2025509

03 / Coverage and quality

Where the series has evidence

Observed rows are counted explicitly by period, group, verification status, and confidence level.

Period ledger1 observed period
20253,104 entities3,1041 source
Evidence stateAll indicator observations

Data status

100.0%Estimated public / 3,104

Confidence

100.0%High / 3,104
StateLatest bounded snapshot, largest groups first
GroupRowsAverageRange
Texas2504,027.8788 to 10,000
Georgia1564,048.8998 to 10,000
Virginia1333,724.81,086 to 10,000
Kentucky1204,085.8958 to 10,000
Missouri1153,071.5710 to 10,000
Kansas1053,520.9509 to 10,000
Illinois1022,890.6688 to 10,000
Iowa992,767.3695 to 6,386
North Carolina983,275.8959 to 10,000
Tennessee953,269.1766 to 10,000
Indiana923,099.2906 to 10,000
Nebraska903,769.7993 to 10,000
Ohio882,369.41,049 to 8,312
Minnesota872,601.2662 to 10,000

Showing 14 of 51 groups. The exact packet retains every observation and group label.

04 / Exact paired lens

County bank-deposit HHI and leading-holder share

County FDIC branch-deposit HHI and the leading reported holding-company or institution share for the same 2025 screen.

Same entity + same period0.974Pearson correlation across 3,104 exact pairs

-1 inverse 0 +1 aligned

Pairing rule
Same county FIPS, FDIC SOD reporting date, and holding-company aggregation rule
Companion indicator
County bank leader
Matched current-series rows
3,104 / 3,104 (100.0%)
Unpaired current-series rows
0; excluded from correlation

Interpretation boundaryCounty rows are screens of positive FDIC Summary of Deposits branch balances grouped to the reported top bank holding company when available and otherwise to the insured institution. Branch-reported deposits may not represent where every customer lives or competes, county boundaries may not match a banking market, deposits are not every banking product, and these screens are not legal market definitions. Association between the two measures is mechanical context, not a finding about competition, access, prices, or consumer outcomes.

05 / Source custody

Evidence behind the series

1 source family, 0 contextual references, and 1 encoded methodology note.

Reusable indicator packetExact rows, stable identifier, and explicit route contract
Canonical URL
/indicators/county-bank-deposit-hhi
Indicator filter
indicator=county-bank-deposit-hhi
License
Antitrust Radar compilation: CC BY 4.0; upstream terms remain in force
Method notes encoded on rowsNo inferred methodology is substituted
  1. 01

    Antitrust Radar sums positive June 30, 2025 branch deposits within each FDIC-reported county or county equivalent, groups branches to the FDIC-reported top bank holding company when available and otherwise to the insured institution certificate, then calculates shares and HHI from those grouped balances.

Indicator evidence guardrail

One measure, one contract

This profile documents one bounded indicator at a time. Its ranks, distributions, histories, and paired views remain inside the stated universe, period basis, source, unit, and methodology; they are descriptive research screens, not legal findings or components of a composite score.

County rows are screens of positive FDIC Summary of Deposits branch balances grouped to the reported top bank holding company when available and otherwise to the insured institution. Branch-reported deposits may not represent where every customer lives or competes, county boundaries may not match a banking market, deposits are not every banking product, and these screens are not legal market definitions.

Read methodology