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Banks in Mason City, IA Current FDIC-insured banks headquartered in the Mason City, IA metropolitan area
Data as of Q2 2026 call reports. Banks that no longer file, such as acquired banks, are not listed.
Every FDIC-insured bank with headquarters in the Mason City, IA metro area that still files, with the most recent quarterly call report data: total assets, deposits, capital ratios, asset quality, and profitability. The full metro area covered is Mason City, IA.
The Mason City, IA metro area is home to 4 FDIC-insured banks, holding $3.13B in combined assets and $2.75B in deposits. The largest is First Citizens Bank ($1.80B), about 57% of the group's total banking assets, followed by Clear Lake Bank and Trust Company and NSB Bank. Across these banks, the median return on assets is 1.62% and the median CET1 capital ratio is 11.28%.
All banks in Mason City, IA 4 institutions with the latest quarterly call report metrics: capital, profitability, and asset quality.
Ratio shading vs. typical bank ranges:
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Banks in the Mason City, IA metro area, with total assets, ROA, net interest margin, efficiency ratio, CET1, NPL ratio, and Texas ratio. Bank City Assets ROA NIM Eff. CET1 NPL Texas First Citizens Bank Mason City, IA $1.80B 2.22% 3.58% 44.2% 13.75% 0.16% 1.4% Clear Lake Bank and Trust Company Clear Lake, IA $649.3M 2.07% 4.18% 52.1% 11.28% 0.00% 0.0% NSB Bank Mason City, IA $460.8M 1.04% 3.12% 54.7% 10.94% 0.32% 6.1% Farmers State Bank Northwood, IA $221.4M 1.17% 4.02% 57.6% — 0.77% 5.2%
Definitions: return on assets (ROA) , net interest margin (NIM) , efficiency ratio (Eff.) , CET1 capital ratio , nonperforming loan ratio (NPL) and Texas ratio . A blank or NM value sorts last.
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