St. Clair township, Iowa
St. Clair township profile, demographic data, and geographic information.
St. Clair township is a geographic entity located in Monona County, Iowa. As of official census estimates, it has a reported population of 530. The land area covers 35.91 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 530 | ±131 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 35.8 yrs | ±5.3 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 268 | ±57 | 2020-2024 / Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).
Housing & Real Estate Profile
| Housing Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Total Housing Units | 307 | ±63 |
| Occupied Housing Units | 268 | ±57 |
| Vacant Housing Units | 39 | ±29 |
| Median Home Value | $97,800 | ±$26,715 |
| Median Gross Rent | $713 | ±$239 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $51,750 | ±$10,664 |
| Per Capita Income | $31,995 | ±$6,934 |
| Poverty Rate | 7.9% | ±3.2% |
| Population Below Poverty Level | 42 | ±20 |
| Unemployment Rate | 1.9% | ±1.5% |
| Civilian Labor Force, Employed | 253 | ±72 |
| Broadband Internet Rate | 78.4% | ±6.6% |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
COUNTY OF MONONA
GUS Population: 8,429 (2024)
ID: 126551
|
County | Official County Government |
Contact: MONONA COUNTY AUDITOR
610 IOWA AVE, ONAWA IA 51040-1671
|
Education
Listing 6 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | PK-05 | Dow City, IA | |
| Regular School Nearby | PK-05 | Charter Oak, IA | |
| Regular School Nearby | 06-08 | Charter Oak, IA | |
| Regular School Nearby | 09-12 | Mapleton, IA | |
| Regular School Nearby | PK-05 | Mapleton, IA | |
| 2 Nearby | 2-11 | DANBURY, IA |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 1 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
UTE PUBLIC LIBRARY
|
Library | 2.3 mi away | 130 MAIN ST, UTE, IA, 51060 |
(712) 885-2237
|
|
FISHER-WHITING MEMORIAL LIBRARY
|
Library | 6.8 mi away | 609 COURTRIGHT, MAPLETON, IA, 51034 |
(712) 881-1312
|
|
SOLDIER PUBLIC LIBRARY
|
Library | 6.9 mi away | 108 OAK ST, SOLDIER, IA, 51572 |
(712) 884-2266
|
|
CHARTER OAK PUBLIC LIBRARY
|
Library | 7.1 mi away | 461 RAILROAD ST, CHARTER OAK, IA, 51439 |
(712) 678-3425
|
|
CORD MEMORIAL LIBRARY
|
Library | 10.9 mi away | 215 MAIN ST, DANBURY, IA, 51019 |
(712) 883-2207
|
|
MOORHEAD PUBLIC LIBRARY
|
Library | 12.6 mi away | MAIN ST, MOORHEAD, IA, 51558 | — |
|
DOW CITY PUBLIC LIBRARY
|
Library | 15.8 mi away | 104 S FRANKLIN ST, DOW CITY, IA, 51528 |
(712) 674-3453
|
|
SCHLESWIG PUBLIC LIBRARY
|
Library | 16.2 mi away | 202 CEDAR ST, SCHLESWIG, IA, 51461 |
(712) 676-3470
|
|
DUNLAP PUBLIC LIBRARY
|
Library | 16.9 mi away | 102 S 10TH ST, DUNLAP, IA, 51529 |
(712) 643-5311
|
|
BATTLE CREEK PUBLIC LIBRARY
|
Library | 17.7 mi away | 115 MAIN ST, BATTLE CREEK, IA, 51006 |
(712) 365-4912
|
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.
Climate & Weather Observations
NOAA Monthly Climate Normals
Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at CASTANA EXP FARM, IA US, located 5.6 miles from St. Clair township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 28.6° | 10.3° | 19.5° | 0.63" | 7.1" |
| February | 33.4° | 14.3° | 23.9° | 0.71" | 7.2" |
| March | 46.8° | 25.5° | 36.1° | 1.69" | 4.2" |
| April | 59.8° | 36.6° | 48.2° | 3.32" | 1.7" |
| May | 70.6° | 49.4° | 60.0° | 4.66" | 0.0" |
| June | 80.2° | 59.7° | 70.0° | 4.84" | 0.0" |
| July | 83.7° | 63.7° | 73.7° | 4.02" | 0.0" |
| August | 81.6° | 61.1° | 71.3° | 4.23" | 0.0" |
| September | 75.3° | 52.6° | 63.9° | 3.05" | 0.0" |
| October | 62.7° | 39.6° | 51.2° | 2.43" | 0.7" |
| November | 46.5° | 26.3° | 36.4° | 1.50" | 2.0" |
| December | 33.0° | 16.1° | 24.5° | 1.03" | 5.7" |
Source: NOAA U.S. Climate Normals (1991–2020).
Local Weather Forecast
Weather forecast data is currently unavailable in the local cache.
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Ute city | City | 2.2 mi | — |
| Mapleton city | City | 6.9 mi | — |
| Soldier city | City | 7.0 mi | — |
| Charter Oak city | City | 7.2 mi | — |
| Ricketts city | City | 8.6 mi | — |
| Castana city | City | 9.3 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1913393735. • Official Source Dataset →
- Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
- Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.