County banking markets / IA / 19169
StoryIowa
FIPS 19169. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 99 counties in Iowa’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 (621) and unconcentrated on deposits (1,030).
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
30 branch offices and 16 institutions in 1994; 37 and 21 in 2025. Deposits booked in the county went from $836.0M to $3.09B, 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 | First National Bank, Ames, Iowa cert 1545 | $635.5M | 20.56% | 3 | 8.11% |
| 2 | U.S. Bank National Association cert 6548 | $349.4M | 11.30% | 2 | 5.41% |
| 3 | South Story Bank & Trust cert 17348 | $339.5M | 10.98% | 4 | 10.81% |
| 4 | VISIONBANK OF IOWA cert 11763 | $301.3M | 9.75% | 4 | 10.81% |
| 5 | Availa Bank cert 11771 | $295.9M | 9.57% | 2 | 5.41% |
| 6 | Wells Fargo Bank, National Association cert 3511 | $260.5M | 8.43% | 1 | 2.70% |
| 7 | State Bank & Trust Co. cert 15651 | $171.8M | 5.56% | 1 | 2.70% |
| 8 | Bankers Trust Company cert 953 | $147.2M | 4.76% | 1 | 2.70% |
| 9 | First Interstate Bank cert 1105 | $137.5M | 4.45% | 3 | 8.11% |
| 10 | Reliance State Bank cert 9299 | $103.7M | 3.35% | 1 | 2.70% |
| 11 | Central State Bank cert 10903 | $77.2M | 2.50% | 1 | 2.70% |
| 12 | Exchange State Bank cert 10132 | $65.2M | 2.11% | 2 | 5.41% |
| 13 | GNB Bank cert 14079 | $36.2M | 1.17% | 2 | 5.41% |
| 14 | Northwest Bank cert 32647 | $33.8M | 1.09% | 1 | 2.70% |
| 15 | Security State Bank cert 18448 | $31.8M | 1.03% | 2 | 5.41% |
| 16 | BMO Bank National Association cert 16571 | $29.7M | 0.96% | 1 | 2.70% |
| 17 | Fidelity Bank cert 5753 | $26.1M | 0.85% | 2 | 5.41% |
| 18 | Maxwell State Bank cert 15930 | $23.6M | 0.76% | 1 | 2.70% |
| 19 | Midwest Heritage Bank, FSB cert 4432 | $20.1M | 0.65% | 1 | 2.70% |
| 20 | TS Bank cert 14812 | $5.3M | 0.17% | 1 | 2.70% |
| 21 | Great Southern Bank cert 29546 | $0K | 0.00% | 1 | 2.70% |
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 Iowa, or read the methodology for the two HHI constructions and what they cannot tell you.