Skip to main content

Lists · Deposits by county

Dekalb County, IL Bank Deposit Market Share

First National Bank of Omaha holds the largest share of deposits in Dekalb County, IL, 28.5%, followed by Resource Bank, N.A. (24.5%) and Old National Bank (17.7%). 9 institutions hold $2.98B at 37 offices as of June 30, 2026, up 6.6% from 2025.

Institutions: 9 Offices: 37 Deposits: $2.98B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Old National Bank (2.36 points); First State Bank (0.61 points).

Lost: Heartland Bank and Trust Company (-1.07 points); First National Bank of Omaha (-0.75 points); Resource Bank, N.A. (-0.69 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 First National Bank of Omaha 9 $847.9M 28.48% -0.75 pts 3.9%
2 Resource Bank, N.A. 10 $728.7M 24.48% -0.69 pts 3.7%
3 Old National Bank 5 $526.5M 17.68% +2.36 pts 23.1%
4 Heartland Bank and Trust Company 6 $397.8M 13.36% -1.07 pts -1.3%
5 First State Bank 3 $202.1M 6.79% +0.61 pts 17.1%
6 Waterman Bank 1 $97.4M 3.27% -0.24 pts -0.6%
7 Fifth Third Bank, N.A. 1 $71.0M 2.38% -0.11 pts 2.1%
8 PNC Bank, N.A. 1 $65.5M 2.20% -0.06 pts 3.9%
9 Old Second National Bank 1 $40.2M 1.35% -0.06 pts 2.0%

About this list

Deposits are those held at each institution's offices in Dekalb County as of June 30, 2026, from the FDIC Summary of Deposits, whatever state the institution is headquartered in. Market share is the institution's deposits divided by all deposits in the market. Shares are by bank charter, not rolled up to the holding company, and cover FDIC-insured institutions only, so credit unions are not included. Each office is placed in its county and metro area by the FDIC branch directory; the few offices the directory does not list are left out of the market and of every share.

Share change compares the institution's share in 2025 and 2026 in percentage points. Deposit change compares its deposits here in the two years and includes deposits that moved through mergers and branch sales; "New" means it had no offices here a year earlier. Offices that closed during the year are placed by their ZIP code or city.

Wider markets

Illinois deposits by institution Chicago-Naperville-Elgin, IL-IN-WI metro area Illinois bank directory

Other counties in Illinois

Cook CountyDupage CountyLake CountyWill CountyKane CountyMchenry CountySangamon CountyWinnebago CountyChampaign CountyMadison CountySt. Clair CountyMclean CountyPeoria CountyLasalle CountyTazewell CountyRock Island CountyKankakee CountyKendall CountyEffingham CountyColes CountyMacon CountyAdams CountyKnox CountyWhiteside CountyWilliamson CountyHenry CountyGrundy CountyClinton CountyStephenson CountyVermilion CountyLivingston CountyOgle CountyBureau CountyMacoupin CountyMonroe CountyJackson CountyMontgomery CountyIroquois CountyRandolph CountyJefferson County

More lists and rankings

Oldest banks De novo banks Largest credit unions Deposits by state Deposits by metro area Largest savings banks S corporation banks Industrial loan companies Non-depository trust companies Credit card banks Publicly traded banks Foreign bank branches New holding companies Largest banks by assets Bank failures Bank mergers All rankings

Open any institution for its full financials, trends and peer benchmarks. Free, no card required.

Start free, no card required

Explore more: deposits by state · deposits by metro area · all rankings