Branch Network
Northeast Security Bank Locations & Branches Sumner, Iowa
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Northeast Security Bank operates 7 branches from its headquarters in Sumner, IA, .
Northeast Security Bank branch network
All 7 branches are in IOWA, across 7 cities. Its largest office by deposits is its main office in Sumner, IA, with $128.7M (33.9% of its branch deposits). It had the same number of branches on June 30, 2025.
Northeast Security Bank at a glance
Its CET1 capital ratio was 15.42% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $461.9M
- CET1 ratio, Q2 2026
- 15.42%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1888
Full financial profile · Is Northeast Security Bank safe? · Northeast Security Bank call report · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Sumner, IA (1 branch) | 1 of 1 | 100.0% | $128.7M |
| State: IA (7 branches) | 76 of 261 | 0.3% | $379.1M |
Ranked by total assets among banks headquartered in the state: Largest banks in Iowa.
Share by county and metro area
Northeast Security Bank's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Buchanan, IA (2 branches) | 3 of 6 | 18.4% | $133.5M | $726.3M |
| Bremer, IA (1 branch) | 3 of 8 | 12.6% | $128.7M | $1.02B |
| Tama, IA (1 branch) | 5 of 8 | 7.7% | $32.0M | $415.7M |
| Fayette, IA (1 branch) | 8 of 8 | 5.3% | $30.5M | $571.1M |
| Winneshiek, IA (1 branch) | 9 of 9 | 2.3% | $28.6M | $1.25B |
| Chickasaw, IA (1 branch) | 8 of 8 | 3.4% | $25.8M | $756.8M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Waterloo-Cedar Falls, IA (1 branch) | 13 of 23 | 2.8% | $128.7M | $4.65B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Northeast Security Bank (main office) | Sumner, IA | 50674 | $128.7M |
| Independence Branch | Independence, IA | 50644 | $75.7M |
| Fairbank Branch | Fairbank, IA | 50629 | $57.8M |
| Dysart Branch | Dysart, IA | 52224 | $32.0M |
| Fayette Branch | Fayette, IA | 52142 | $30.5M |
| Main Street Branch | Decorah, IA | 52101 | $28.6M |
| Fredericksburg Facility | Fredericksburg, IA | 50630 | $25.8M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 18384) · FFIEC NIC profile (RSSD 442244)