State Rankings & Insights
See how banks across IOWA rank on Net Interest Margin for 2025Q1. Values are reported in percentage terms as of 2025-03-31. Browse the table below or jump directly to an institution’s call‑report profile.
- Average: 3.20%
- Median: 3.19%
- Min / Max: 1.63% — 5.11%
Count
234
Sum
748.31%
Avg
3.20%
Median
3.19%
Min
1.63%
Max
5.11%
| Bank | City | Net Interest Margin |
|---|---|---|
| STATE CENTRAL BANK | BONAPARTE | 5.11% |
| ITS BANK | JOHNSTON | 5.01% |
| DYSART STATE BANK | DYSART | 4.81% |
| HEARTLAND BANK | SOMERS | 4.80% |
| SOLON STATE BANK | SOLON | 4.63% |
| COUNTY BANK | SIGOURNEY | 4.62% |
| FIRST IOWA STATE BANK | ALBIA | 4.38% |
| TWIN CEDARS BANK | BUSSEY | 4.37% |
| SECURITY SAVINGS BANK | GOWRIE | 4.27% |
| SECURITY STATE BANK | ALGONA | 4.25% |
| FARMERS TRUST&SAVINGS BANK | WILLIAMSBURG | 4.24% |
| DEFIANCE STATE BANK | DEFIANCE | 4.10% |
| FIRST STATE BANK | STUART | 4.08% |
| FIRST COMMUNITY TRUST NA | DUBUQUE | 4.03% |
| UNION STATE BANK | GREENFIELD | 4.03% |
| BANK PLUS | ESTHERVILLE | 4.02% |
| IOWA FALLS STATE BANK | IOWA FALLS | 4.01% |
| CEDAR VALLEY BANK&TRUST | LA PORTE CITY | 3.97% |
| CORNERSTONE BANK | CLARINDA | 3.96% |
| STATE BANK OF TOLEDO | TOLEDO | 3.95% |
| WESTSIDE STATE BANK | WESTSIDE | 3.93% |
| SUCCESS BANK | BLOOMFIELD | 3.92% |
| LOGAN STATE BANK | LOGAN | 3.92% |
| AMERICAN STATE BANK | OSCEOLA | 3.91% |
| LIBERTY NATIONAL BANK | SIOUX CITY | 3.88% |
| SECURITY STATE BANK | SUTHERLAND | 3.86% |
| HOUGHTON STATE BANK | RED OAK | 3.85% |
| FIRST BANK HAMPTON | HAMPTON | 3.85% |
| ROLLING HILLS BANK&TRUST | ATLANTIC | 3.84% |
| CITIZENS SAVINGS BANK | MARSHALLTOWN | 3.83% |
| CBI BANK&TRUST | MUSCATINE | 3.82% |
| FARMERS&MERCHANTS SB | MANCHESTER | 3.82% |
| PEOPLES BANK | ROCK VALLEY | 3.81% |
| BANK | WAPELLO | 3.79% |
| FNNB BANK | NEWTON | 3.79% |
| FIRST TRUST&SAVINGS BANK | WHEATLAND | 3.78% |
| TRI-VALLEY BANK | RANDOLPH | 3.77% |
| CITIZENS 1ST NB STORM LAKE | STORM LAKE | 3.77% |
| MALVERN BANK | MALVERN | 3.76% |
| STATE SAVINGS BANK | WEST DES MOINES | 3.75% |
| LIBERTYVILLE SAVINGS BANK | FAIRFIELD | 3.73% |
| BRIDGE COMMUNITY BANK | MOUNT VERNON | 3.72% |
| HIAWATHA BANK&TRUST CO | HIAWATHA | 3.72% |
| MIDWEST HERITAGE BANK FSB | WEST DES MOINES | 3.72% |
| FNB BANK | FONTANELLE | 3.71% |
| BENTON COUNTY STATE BANK | BLAIRSTOWN | 3.70% |
| GNB BANK | GRUNDY CENTER | 3.70% |
| STATE SAVINGS BANK | BEDFORD | 3.70% |
| CLEAR LAKE BANK&TRUST CO | CLEAR LAKE | 3.70% |
| FARMERS STATE BANK | ALGONA | 3.68% |
| CITIZENS STATE BANK | WYOMING | 3.66% |
| HOME STATE BANK | JEFFERSON | 3.66% |
| IOWA TRUST&SAVINGS BANK | CENTERVILLE | 3.65% |
| PREMIER BANK | ROCK VALLEY | 3.65% |
| AUDUBON STATE BANK | AUDUBON | 3.62% |
| STATE BANK | SPENCER | 3.60% |
| FEDERATION BANK | WASHINGTON | 3.58% |
| MONTEZUMA STATE BANK | MONTEZUMA | 3.57% |
| EXCHANGE STATE BANK | SPRINGVILLE | 3.56% |
| FIRST STATE BANK | LYNNVILLE | 3.56% |
| OHNWARD BANK&TRUST | CASCADE | 3.55% |
| FIRST HERITAGE BANK | SHENANDOAH | 3.55% |
| DECORAH BANK&TRUST CO | DECORAH | 3.54% |
| SHELBY COUNTY STATE BANK | HARLAN | 3.54% |
| COMMUNITY BANK | DUNLAP | 3.53% |
| EARLHAM SAVINGS BANK | WEST DES MOINES | 3.53% |
| SOUTH STORY BANK&TRUST | SLATER | 3.52% |
| FARMERS SAVINGS BANK | MARSHALLTOWN | 3.52% |
| FARMERS STATE BANK | NORTHWOOD | 3.52% |
| TEMPLETON SAVINGS BANK | TEMPLETON | 3.52% |
| BANK MIDWEST | SPIRIT LAKE | 3.50% |
| EXCHANGE STATE BANK | AMES | 3.49% |
| CONNECTION BANK | FORT MADISON | 3.49% |
| HOME STATE BANK | ROYAL | 3.48% |
| COMMUNITY BANK&TRUST CO | MUSCATINE | 3.46% |
| CEDAR RAPIDS BANK&TRUST CO | CEDAR RAPIDS | 3.46% |
| FIRST COMMUNITY BANK | NEWELL | 3.45% |
| FARMERS&MERCHANTS STATE BANK | WINTERSET | 3.45% |
| MIDWESTONE BANK | IOWA CITY | 3.44% |
| BANKIOWA | CEDAR RAPIDS | 3.44% |
| PILOT GROVE SAVINGS BANK | PILOT GROVE | 3.44% |
| GLENWOOD STATE BANK | GLENWOOD | 3.44% |
| LIBERTY TRUST&SAVINGS BANK | DURANT | 3.43% |
| BANK IOWA | WEST DES MOINES | 3.40% |
| KEYSTONE SAVINGS BANK | MARENGO | 3.40% |
| BELLEVUE STATE BANK | BELLEVUE | 3.39% |
| FARMERS TRUST&SAVINGS BANK | EARLING | 3.39% |
| CAPRA BANK | DUBUQUE | 3.38% |
| FIRST SECURITY STATE BANK | EVANSDALE | 3.38% |
| STATE SAVINGS BANK | RAKE | 3.38% |
| MIDSTATES BANK NATIONAL ASSN | COUNCIL BLUFFS | 3.37% |
| IOWA STATE BANK | HULL | 3.36% |
| WASHINGTON STATE BANK | WASHINGTON | 3.35% |
| VISIONBANK OF IOWA | AMES | 3.34% |
| TRUBANK | INDIANOLA | 3.33% |
| SIBLEY STATE BANK | SIBLEY | 3.32% |
| FIRST STATE BANK | NASHUA | 3.32% |
| CRAWFORD COUNTY T&SB | DENISON | 3.32% |
| MEDIAPOLIS SAVINGS BANK | MEDIAPOLIS | 3.31% |
| COMMUNITY STATE BANK | ANKENY | 3.30% |
| WAUKON STATE BANK | WAUKON | 3.30% |
| FARMERS STATE BANK | LAKE VIEW | 3.30% |
| READLYN SAVINGS BANK | READLYN | 3.29% |
| SANBORN SAVINGS BANK | SANBORN | 3.27% |
| FIRST BANK | WAVERLY | 3.27% |
| WHITE STATE BANK | SOUTH ENGLISH | 3.26% |
| MAQUOKETA STATE BANK | MAQUOKETA | 3.25% |
| FARMERS&MERCHANTS SB | IOWA CITY | 3.24% |
| WEST IOWA BANK | WEST BEND | 3.24% |
| GRINNELL STATE BANK | GRINNELL | 3.23% |
| PINNACLE BANK | MARSHALLTOWN | 3.23% |
| MARION COUNTY STATE BANK | PELLA | 3.22% |
| IOWA TRUST&SAVINGS BANK | EMMETSBURG | 3.22% |
| IOWA ST B&T CO FAIRFLD IA | FAIRFIELD | 3.21% |
| SLOAN STATE BANK | SLOAN | 3.20% |
| COMMUNITY STATE BANK | SPENCER | 3.19% |
| RACCOON VALLEY BANK | PERRY | 3.19% |
| CHELSEA SAVINGS BANK | BELLE PLAINE | 3.18% |
| MANUFACTURERS BANK&TRUST CO | FOREST CITY | 3.18% |
| FARMERS TRUST&SAVINGS BANK | BUFFALO CENTER | 3.17% |
| PRIMEBANK | LE MARS | 3.16% |
| HILLS BANK&TRUST CO | HILLS | 3.15% |
| DEWITT BANK&TRUST CO | DEWITT | 3.14% |
| KERNDT BROTHERS SAVINGS BANK | LANSING | 3.14% |
| LEIGHTON STATE BANK | PELLA | 3.13% |
| UNION STATE BANK | WINTERSET | 3.13% |
| CUSB BANK | CRESCO | 3.13% |
| FIRST SECURITY BANK&TRUST CO | CHARLES CITY | 3.13% |
| NORTHSTAR BANK | ESTHERVILLE | 3.13% |
| SAVINGS BANK | PRIMGHAR | 3.12% |
| CHARTER BANK | JOHNSTON | 3.12% |
| COMMUNITY SAVINGS BANK | EDGEWOOD | 3.11% |
| TWO RIVERS BANK&TRUST | BURLINGTON | 3.08% |
| IOWA STATE SAVINGS BANK | CRESTON | 3.08% |
| FARMERS&MERCHANTS BANK&TRUST | BURLINGTON | 3.07% |
| BANK 1ST | WEST UNION | 3.07% |
| IOWA SAVINGS BANK | CARROLL | 3.07% |
| AMERICAN BANK NATIONAL ASSN | LE MARS | 3.06% |
| IOWA STATE BANK | DES MOINES | 3.05% |
| IOWA STATE BANK | CLARKSVILLE | 3.05% |
| GREEN BELT BANK&TRUST | IOWA FALLS | 3.05% |
| FARMERS STATE BANK | YALE | 3.05% |
| SECURITY NB OF SIOUX CITY IA | SIOUX CITY | 3.04% |
| CITIZENS STATE BANK | SHELDON | 3.03% |
| FARMERS STATE BANK | MARCUS | 3.02% |
| FARMERS SAVINGS BANK | COLESBURG | 3.01% |
| FREEDOM FINANCIAL BANK | WEST DES MOINES | 3.01% |
| IOWA STATE BANK | SAC CITY | 3.00% |
| PIONEER BANK | SERGEANT BLUFF | 3.00% |
| FIRST CENTRAL STATE BANK | DEWITT | 3.00% |
| FARMERS SAVINGS BANK&TRUST | TRAER | 2.99% |
| ASHTON STATE BANK | ASHTON | 2.99% |
| FREEDOMBANK | ELKADER | 2.99% |
| AMERICAN B&T CO NA | DAVENPORT | 2.99% |
| IOWA STATE BANK | ALGONA | 2.98% |
| FIDELITY BANK&TRUST | DUBUQUE | 2.97% |
| QUAD CITY BANK&TRUST CO | BETTENDORF | 2.97% |
| SOUTH OTTUMWA SAVINGS BANK | OTTUMWA | 2.97% |
| PEOPLES SAVINGS BANK | WELLSBURG | 2.96% |
| CENTRAL BANK | STORM LAKE | 2.94% |
| FIRST CITIZENS BANK | MASON CITY | 2.94% |
| UNITED BANK&TRUST CO | MARSHALLTOWN | 2.94% |
| NORTHEAST SECURITY BANK | SUMNER | 2.93% |
| FARMERS STATE BANK | MARION | 2.91% |
| UNITED BANK&TRUST CO | HAMPTON | 2.91% |
| NORTHWEST BANK | SPENCER | 2.91% |
| FIRST STATE BANK | WEBSTER CITY | 2.90% |
| FIRST STATE BANK | BRITT | 2.90% |
| STATE BANK OF SCHALLER | SCHALLER | 2.89% |
| PREMIER BANK | DUBUQUE | 2.89% |
| CORYDON STATE BANK | CORYDON | 2.87% |
| COMMERCIAL SAVINGS BANK | CARROLL | 2.87% |
| PEOPLES SAVINGS BANK | INDIANOLA | 2.86% |
| BANKERS TRUST CO | DES MOINES | 2.86% |
| AMERICAN STATE BANK | SIOUX CENTER | 2.85% |
| BREDA SAVINGS BANK | BREDA | 2.85% |
| FARMERS SAVINGS BANK | WEVER | 2.84% |
| LINCOLN SAVINGS BANK | REINBECK | 2.78% |
| PALO SAVINGS BANK | PALO | 2.77% |
| HARDIN COUNTY SAVINGS BANK | ELDORA | 2.77% |
| CITY STATE BANK | NORWALK | 2.76% |
| NSB BANK | MASON CITY | 2.75% |
| BLUE GRASS SAVINGS BANK | BLUE GRASS | 2.73% |
| FARMERS SAVINGS BANK | FOSTORIA | 2.73% |
| DENVER SAVINGS BANK | DENVER | 2.71% |
| UNITED COMMUNITY BANK | MILFORD | 2.71% |
| ATKINS SAVINGS BANK&TRUST | ATKINS | 2.71% |
| RELIANCE STATE BANK | STORY CITY | 2.70% |
| STATE BANK&TRUST CO | NEVADA | 2.69% |
| AVAILA BANK | CARROLL | 2.66% |
| CITIZENS SAVINGS BANK | ANAMOSA | 2.65% |
| MOUNT VERNON BANK&TRUST CO | MOUNT VERNON | 2.64% |
| COMMUNITY STATE BANK | PATON | 2.63% |
| FIRST SECURITY BANK | MAPLETON | 2.63% |
| PEOPLES BANK | CLIVE | 2.60% |
| MAXWELL STATE BANK | MAXWELL | 2.60% |
| FIRST NB OF PRIMGHAR | PRIMGHAR | 2.60% |
| PCSB BANK | CLARINDA | 2.59% |
| HERITAGE BANK | MARION | 2.57% |
| GUTHRIE COUNTY STATE BANK | PANORA | 2.57% |
| CHEROKEE STATE BANK | CHEROKEE | 2.56% |
| DANVILLE STATE SAVINGS BANK | NEW LONDON | 2.55% |
| WCF FINANCIAL BANK | WEBSTER CITY | 2.55% |
| PRINCIPAL BANK | DES MOINES | 2.55% |
| CENTRAL STATE BANK | CORALVILLE | 2.54% |
| ST ANSGAR STATE BANK | SAINT ANSGAR | 2.54% |
| FAIRFAX STATE SAVINGS BANK | FAIRFAX | 2.54% |
| CITIZENS STATE BANK | MONTICELLO | 2.54% |
| TS BANK | TREYNOR | 2.52% |
| POCAHONTAS STATE BANK | POCAHONTAS | 2.51% |
| UNITED BANK OF IOWA | IDA GROVE | 2.45% |
| STATE BANK | SPIRIT LAKE | 2.43% |
| CLINTON NATIONAL BANK | CLINTON | 2.43% |
| WEST BANK | WEST DES MOINES | 2.41% |
| COMMUNITY BANK OF OELWEIN | OELWEIN | 2.40% |
| FARMERS TRUST&SAVINGS BANK | SPENCER | 2.39% |
| CITIZENS FIRST BANK | CLINTON | 2.38% |
| FIRST WHITNEY BANK&TRUST | ATLANTIC | 2.36% |
| SECURITY TRUST&SAVINGS BANK | STORM LAKE | 2.29% |
| SECURITY STATE BANK | RADCLIFFE | 2.26% |
| FIRST NB OF MANNING | MANNING | 2.25% |
| FIRST NB AMES IOWA | AMES | 2.23% |
| BOONE BANK&TRUST CO | BOONE | 2.21% |
| HOME TRUST&SAVINGS BANK | OSAGE | 2.18% |
| MAYNARD SAVINGS BANK | MAYNARD | 2.14% |
| FARMERS STATE BANK | WATERLOO | 2.08% |
| FIRST TRUST&SAVINGS BANK | CORALVILLE | 2.04% |
| AMERICAN TRUST&SAVINGS BANK | LOWDEN | 1.95% |
| CITIZENS SAVINGS BANK | SPILLVILLE | 1.93% |
| FIRST STATE BANK | BELMOND | 1.91% |
| CENTRAL STATE BANK | STATE CENTER | 1.86% |
| WATKINS SAVINGS BANK | WATKINS | 1.80% |
| LUANA SAVINGS BANK | LUANA | 1.70% |
| NEW ALBIN SAVINGS BANK | NEW ALBIN | 1.63% |