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Rock Island County, IL Bank Deposit Market Share

Blackhawk Bank & Trust holds the largest share of deposits in Rock Island County, IL, 40.3%, followed by TBK Bank, SSB (8.0%) and Quad City Bank and Trust Company (6.6%). 16 institutions hold $2.94B at 44 offices as of June 30, 2026, down 5.0% from 2025.

Institutions: 16 Offices: 44 Deposits: $2.94B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Blackhawk Bank & Trust (5.34 points); CBI Bank & Trust (0.78 points); Wells Fargo Bank, N.A. (0.61 points).

Lost: Old National Bank (-5.02 points); American Bank and Trust Company, N.A. (-2.08 points); Quad City Bank and Trust Company (-1.46 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Blackhawk Bank & Trust 12 $1.19B 40.28% +5.34 pts 9.5%
2 TBK Bank, SSB 7 $235.1M 7.99% +0.44 pts 0.6%
3 Quad City Bank and Trust Company 1 $193.3M 6.57% -1.46 pts -22.2%
4 CBI Bank & Trust 2 $184.8M 6.28% +0.78 pts 8.5%
5 Old National Bank 2 $181.2M 6.15% -5.02 pts -47.7%
6 Wells Fargo Bank, N.A. 2 $172.2M 5.85% +0.61 pts 6.1%
7 American Bank and Trust Company, N.A. 4 $171.5M 5.83% -2.08 pts -30.0%
8 JPMorgan Chase Bank, N.A. 1 $164.4M 5.58% +0.59 pts 6.1%
9 U.S. Bank N.A. 3 $133.2M 4.52% +0.36 pts 3.2%
10 Bankorion 2 $99.5M 3.38% +0.27 pts 3.2%
11 Peoples National Bank of Kewanee 1 $74.2M 2.52% +0.01 pts -4.5%
12 Midwest Bank 2 $50.0M 1.70% 0.00 pts -5.1%
13 Morton Community Bank 1 $47.1M 1.60% +0.08 pts 0.3%
14 Union Federal Savings and Loan Association 2 $27.5M 0.94% +0.07 pts 2.7%
15 First National Bank 1 $22.5M 0.76% +0.00 pts -4.5%
16 Woodforest National Bank 1 $1.7M 0.06% +0.00 pts 2.7%

About this list

Deposits are those held at each institution's offices in Rock Island 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 Davenport-Moline-Rock Island, IA-IL metro area Illinois bank directory

Other counties in Illinois

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