Branch Presence
Banks with Branches in Sioux City, IA
The Security National Bank of Sioux City, Iowa is the biggest bank in Sioux City, IA, with $847.4M in deposits at its Sioux City branches, 28.6% of the city's total as of the June 30, 2026 FDIC Summary of Deposits.
14 banks operate 32 branches in Sioux City, IA, ranked below by local branch count from the FDIC Summary of Deposits. This counts every bank with a branch here, not only banks headquartered locally.
Deposit share is each bank's share of the $2.96B held in Sioux City, IA, as of the June 30, 2026 FDIC Summary of Deposits, ranked by deposits (#1 is largest). Banks that book deposits at a headquarters branch can show a share that exceeds their local customer base.
| Bank | Branches in Sioux City | Local deposits | Deposit share |
|---|---|---|---|
| Central Bank | 5 | $436.0M | 14.7% (#2) |
| Great Southern Bank | 5 | $273.7M | 9.2% (#5) |
| The Security National Bank of Sioux City, Iowa | 4 | $847.4M | 28.6% (#1) |
| Wells Fargo Bank, N.A. | 3 | $425.4M | 14.4% (#3) |
| U.S. Bank N.A. | 3 | $277.2M | 9.4% (#4) |
| Primebank | 2 | $230.1M | 7.8% (#6) |
| Pioneer Bank | 2 | $75.8M | 2.6% (#10) |
| BankFirst | 2 | $42.7M | 1.4% (#12) |
| Northwest Bank | 1 | $127.8M | 4.3% (#7) |
| Availa Bank | 1 | $85.7M | 2.9% (#8) |
| Peoples Bank | 1 | $81.2M | 2.7% (#9) |
| Liberty National Bank | 1 | $51.8M | 1.8% (#11) |
| First Interstate Bank | 1 | $3.7M | 0.1% (#13) |
| F&M Bank | 1 | $1.6M | <0.1% (#14) |
County deposit market: Woodbury, IA
The $3.45B held across 20 FDIC-insured banks in this county, as of the June 30, 2026 FDIC Summary of Deposits. The 10 largest are shown; see every bank in the Woodbury, IA market with its change from a year earlier. Banks only: credit unions are not in the Summary of Deposits.
| Rank | Bank | Deposit share | Deposits | Branches |
|---|---|---|---|---|
| 1 | The Security National Bank of Sioux City, Iowa | 28.3% | $975.1M | 6 |
| 2 | Central Bank | 12.6% | $436.0M | 5 |
| 3 | Wells Fargo Bank, N.A. | 12.3% | $425.4M | 3 |
| 4 | U.S. Bank N.A. | 8.0% | $277.2M | 3 |
| 5 | Great Southern Bank | 7.9% | $273.7M | 5 |
| 6 | Primebank | 6.7% | $230.1M | 2 |
| 7 | Pioneer Bank | 5.6% | $191.4M | 3 |
| 8 | Northwest Bank | 3.7% | $127.8M | 1 |
| 9 | United Bank of Iowa | 2.8% | $97.0M | 4 |
| 10 | Availa Bank | 2.5% | $85.7M | 1 |
Metro area deposit market: Sioux City, IA-NE-SD
The $4.77B held across 30 FDIC-insured banks in this metro area, as of the June 30, 2026 FDIC Summary of Deposits. The 10 largest are shown; see every bank in the Sioux City, IA-NE-SD market with its change from a year earlier. Banks only: credit unions are not in the Summary of Deposits.
| Rank | Bank | Deposit share | Deposits | Branches |
|---|---|---|---|---|
| 1 | The Security National Bank of Sioux City, Iowa | 20.4% | $975.1M | 6 |
| 2 | Central Bank | 10.3% | $492.0M | 6 |
| 3 | Wells Fargo Bank, N.A. | 8.9% | $425.4M | 3 |
| 4 | Great Southern Bank | 6.2% | $296.6M | 6 |
| 5 | Liberty National Bank | 6.2% | $294.1M | 4 |
| 6 | U.S. Bank N.A. | 5.8% | $277.2M | 3 |
| 7 | Pioneer Bank | 5.1% | $243.0M | 4 |
| 8 | Primebank | 4.8% | $230.1M | 2 |
| 9 | BankFirst | 3.5% | $165.1M | 4 |
| 10 | Premier Bank | 3.2% | $152.8M | 1 |
Banks in Sioux City: common questions
What is the biggest bank in Sioux City, IA?
The Security National Bank of Sioux City, Iowa is the biggest bank in Sioux City, IA, with $847.4M in deposits at its Sioux City branches, 28.6% of the city's total as of the June 30, 2026 FDIC Summary of Deposits.
How many banks are in Sioux City, IA?
14 FDIC-insured banks operate 32 branches in Sioux City, IA as of the June 30, 2026 FDIC Summary of Deposits. This counts every bank with a branch in the city, not only banks headquartered there. Credit unions are not in the Summary of Deposits.
What are the largest banks in Sioux City, IA?
Ranked by deposits held in Sioux City branches as of the June 30, 2026 FDIC Summary of Deposits: 1. The Security National Bank of Sioux City, Iowa (28.6%); 2. Central Bank (14.7%); 3. Wells Fargo Bank, N.A. (14.4%); 4. U.S. Bank N.A. (9.4%); 5. Great Southern Bank (9.2%). The share is each bank's part of all deposits in the city.
Largest banks in Iowa
For the state as a whole, see the largest banks in Iowa, ranked by total assets and by deposits in Iowa branches, or every bank in the Iowa bank directory.
Banks in other Iowa cities:
About this data
Branch counts and local deposits come from the FDIC Summary of Deposits, the annual June 30 survey of branch-office deposits for every FDIC-insured bank. Click any bank to see its full regulatory profile and complete branch network. Looking for banks headquartered here instead? See the US bank directory.