Lists · Deposits by metro area
Mason City, IA Metro Area Bank Deposit Market Share
First Citizens Bank holds the largest share of deposits in the Mason City, IA metro area, 34.9%, followed by Clear Lake Bank and Trust Company (25.2%) and NSB Bank (11.4%). 9 institutions hold $2.07B at 22 offices as of June 30, 2026.
| # | Institution | Deposits | Market share | Share change from 2025 |
|---|---|---|---|---|
| 1 | First Citizens Bank | $723.1M | 34.93% | — |
| 2 | Clear Lake Bank and Trust Company | $521.4M | 25.19% | — |
| 3 | NSB Bank | $236.8M | 11.44% | — |
| 4 | Farmers State Bank | $161.8M | 7.82% | — |
| 5 | Wells Fargo Bank, N.A. | $156.0M | 7.54% | — |
| 6 | U.S. Bank N.A. | $108.5M | 5.24% | — |
| 7 | Manufacturers Bank & Trust Company | $69.4M | 3.35% | — |
| 8 | First Security Bank and Trust Company | $64.2M | 3.10% | — |
| 9 | Bank Iowa | $29.0M | 1.40% | — |
About this list
Deposits are those held at each institution's offices in Mason City, IA (the Census Bureau core based statistical area) as of June 30, 2026, from the FDIC Summary of Deposits, whatever state the institution is headquartered in. Market share is the institution's deposits divided by all deposits in the market. Shares are by bank charter, not rolled up to the holding company, and cover FDIC-insured institutions only, so credit unions are not included. Each office is placed in its county and metro area by the FDIC branch directory; the few offices the directory does not list are left out of the market and of every share.
The change from 2025 is not shown for this market: some offices that closed during the year cannot be placed in a single county or metro area, and they hold enough deposits to move the comparison. The 2026 shares are complete.
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