State Central Bank

Bonaparte, Iowa, Van Buren County

$63M in total assets, the 4,012th largest of 4,309 US banks and 211th of 227 headquartered in Iowa.

At a glance

Compared with 32 banks headquartered in Iowa with under $100 million in assets, as of June 30, 2026.

Measure	This bank	Percentile	Peer median
Total assets	$63M	50%	$60M
Loans	$37M	59%	$32M
Deposits	$51M	50%	$51M
Return on assets	2.80%	94%	0.99%
Net interest margin	5.02%	98%	3.73%
Efficiency ratio	71.8%	72%	64.1%
Equity to assets	16.88%	91%	12.55%
Loans to deposits	73%	55%	64%

Total assets grew 5.3% a year over the last 5 years and 3.9% a year over 10 years, without acquisitions.

Closed	Acquired bank	Assets at acquisition
Jul 1988	Iowa State Bank Fort Madison, IA	$26M
Apr 1977	Iowa State Bank Stockport, IA	n/a

4 branches in 2 counties.

County	Deposits	Market share	Rank
Van Buren County, IA	$35M	15.7%	3 of 5
Lee County, IA	$16M	1.2%	6 of 6

Deposits by branch from the FDIC Summary of Deposits, June 2026. Rank among all banks with branches in that county.

No net change since 2016 (4 branches then and now). 1 opened, 0 acquired, 1 closed or sold.

Period	What happened	Opened or acquired	Closed or sold	Net change	Branches at end
Start of 2016	Starting point				4
2016	Closed Dubuque	0	1	−1	3
2022	Opened Keokuk	1	0	+1	4

Type	This bank	Peers
1-4 family residential	37%	25%
Business (C&I)	24%	11%
Consumer	16%	7%
Commercial real estate	15%	9%
Construction and land	5%	2%
Farmland	1%	23%
Agricultural	0%	23%

Type	This bank	Peers
Other interest-bearing	50%	43%
Time deposits	30%	39%
Noninterest-bearing	21%	19%

Brokered deposits are 0.0% of deposits (peers 0.6%).

Trailing four quarters, with the peer median.

Noncurrent loans exclude government-guaranteed portions.

Figures as of June 30, 2026 from the bank's Call Report, FDIC structure and branch data, and the Federal Reserve. Short link: bankingstats.com/banks/state-central-bank-bonaparte-ia