County banking markets / IL / 17161
Rock IslandIllinois
FIPS 17161. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 102 counties in Illinois’s 2025 survey.
Concentration, 1994–2025
Branch-count HHI squares each institution’s share of the county’s branch offices; deposit HHI squares its share of county deposits. The bands are the 2010 Horizontal Merger Guidelines classification, the dashed line the 1,800 level above which the Federal Reserve reviews a merger centrally. In 2025 this market is unconcentrated on branches (1,281) and moderately concentrated on deposits (1,652).
Source: FDIC Summary of Deposits | DOJ & FTC, Horizontal Merger Guidelines (2010), section 5.3 | Federal Reserve, Competitive Effects of Mergers and Acquisitions FAQs Both indices computed from the SOD branch rows for this county, June 30 of each survey year. Neither is the Fed's screen HHI: no thrift weighting, no exclusion of specialty and internet banks, no central-booking adjustment. Methodology
Branches and institutions
45 branch offices and 18 institutions in 1994; 44 and 16 in 2025. Deposits booked in the county went from $1.73B to $3.10B, nominal.
Source: FDIC Summary of Deposits FDIC Summary of Deposits, June 30 of each survey year, 1994-2025. Methodology
Who holds the deposits, 2025
Every institution with a branch in the county, ranked by deposits booked here. Both shares are shown because they are the two indices above: squaring and summing the deposit column gives the deposit HHI, the branch column the branch-count HHI.
| # | Institution | Deposits | Deposit share | Branches | Branch share |
|---|---|---|---|---|---|
| 1 | Blackhawk Bank & Trust cert 18402 | $1.08B | 34.94% | 12 | 27.27% |
| 2 | Old National Bank cert 3832 | $346.1M | 11.17% | 2 | 4.55% |
| 3 | Quad City Bank and Trust Company cert 33867 | $248.5M | 8.02% | 1 | 2.27% |
| 4 | American Bank and Trust Company, National Association cert 34955 | $245.0M | 7.91% | 4 | 9.09% |
| 5 | TBK BANK, SSB cert 23498 | $233.7M | 7.54% | 7 | 15.91% |
| 6 | CBI Bank & Trust cert 1552 | $170.4M | 5.50% | 2 | 4.55% |
| 7 | Wells Fargo Bank, National Association cert 3511 | $162.2M | 5.24% | 2 | 4.55% |
| 8 | JPMorgan Chase Bank, National Association cert 628 | $154.9M | 5.00% | 1 | 2.27% |
| 9 | U.S. Bank National Association cert 6548 | $129.0M | 4.16% | 3 | 6.82% |
| 10 | BankOrion cert 11739 | $96.4M | 3.11% | 2 | 4.55% |
| 11 | Peoples National Bank of Kewanee cert 926 | $77.6M | 2.51% | 1 | 2.27% |
| 12 | Midwest Bank cert 3711 | $52.7M | 1.70% | 2 | 4.55% |
| 13 | Morton Community Bank cert 18429 | $47.0M | 1.52% | 1 | 2.27% |
| 14 | Union Federal Savings and Loan Association cert 27767 | $26.8M | 0.87% | 2 | 4.55% |
| 15 | First National Bank cert 25894 | $23.6M | 0.76% | 1 | 2.27% |
| 16 | Woodforest National Bank cert 23220 | $1.6M | 0.05% | 1 | 2.27% |
Source: FDIC Summary of Deposits June 30, 2025. Branch rows grouped by FDIC certificate; names as reported to the survey. Deposit share is n/a where the county's total SOD deposits are zero. Methodology
Back to county banking markets, up to Illinois, or read the methodology for the two HHI constructions and what they cannot tell you.