ZIP Code 51240, Iowa
ZIP Code 51240 profile, demographic data, and geographic information.
ZCTA5 51240 is a 5-digit ZIP Code area located in Lyon County / Sioux County, Iowa. As of official census estimates, it has a reported population of 1,914. The land area covers 100.43 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 1,914 | ±297 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 34.4 yrs | ±4 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 632 | ±96 | 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 | 673 | ±105 |
| Occupied Housing Units | 632 | ±96 |
| Vacant Housing Units | 41 | ±46 |
| Median Home Value | $232,600 | ±$31,743 |
| Median Gross Rent | $993 | ±$486 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $83,929 | ±$5,960 |
| Per Capita Income | $41,804 | ±$8,695 |
| Poverty Rate | 3% | ±1.8% |
| Population Below Poverty Level | 57 | ±35 |
| Unemployment Rate | 1.4% | ±1.9% |
| Civilian Labor Force, Employed | 861 | ±178 |
| Broadband Internet Rate | 96% | ±2.9% |
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 |
|---|---|---|---|
|
GUS Population: 12,378 (2024)
ID: 164261
|
County | Official County Government |
Contact: LYON COUNTY DEPUTY AUDITOR
206 S 2ND AVE, ROCK RAPIDS IA 51246-1507
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | 06-08 | Sioux Falls, SD | |
| Regular School Nearby | 09-12 | Canton, SD | |
| Regular School Nearby | 06-08 | Canton, SD | |
| Regular School Nearby | PK-06 | Rock Rapids, IA | |
| Regular School Nearby | 07-12 | Rock Rapids, IA | |
| Regular School Nearby | 02-05 | Sioux Falls, SD | |
| Special Education School Nearby | 12 | Sioux Falls, SD | |
| Regular School Nearby | 06-08 | Sioux Falls, SD | |
| Regular School Nearby | PK-05 | Sioux Falls, SD | |
| Regular School Nearby | KG-05 | Harrisburg, SD |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
Kairos University
|
College | 20.4 mi away | 2100 S Summit Ave, Sioux Falls, SD, 57105 |
6053366588
|
|
INWOOD PUBLIC LIBRARY
|
Library | 1.3 mi away | 103 S MAIN ST, INWOOD, IA, 51240 |
(712) 753-4814
|
|
Augustana University
|
College | 20.4 mi away | 2001 S Summit Ave, Sioux Falls, SD, 57197-0001 |
6052745516
|
|
CANTON PUBLIC LIBRARY
|
Library | 6.7 mi away | 225 N BROADWAY, CANTON, SD, 57013 |
(605) 987-5831
|
|
University of Sioux Falls
|
College | 20.8 mi away | 1101 W 22nd St, Sioux Falls, SD, 57105-1699 |
6053315000
|
|
LARCHWOOD PUBLIC LIBRARY
|
Library | 10.1 mi away | 1020 BROADWAY, LARCHWOOD, IA, 51241 |
(712) 477-2583
|
|
California Intercontinental University
|
College | 21.2 mi away | 101 South Reid Street, Suite 307, Sioux Falls, SD, 57103 |
9493590045
|
|
ROCK VALLEY PUBLIC LIBRARY
|
Library | 10.9 mi away | 1531 MAIN ST, ROCK VALLEY, IA, 51247 |
(712) 476-5651
|
|
Sanford Medical Center
|
College | 21.2 mi away | 1305 W. 18th Street, Sioux Falls, SD, 57117-5039 |
6053337544
|
|
DOON PUBLIC LIBRARY
|
Library | 11.5 mi away | 614 RICE AVE, DOON, IA, 51235 |
(712) 726-3526
|
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 CANTON, SD US, located 6.5 miles from ZCTA5 51240. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 25.3° | 5.8° | 15.5° | 0.56" | 7.0" |
| February | 30.6° | 10.5° | 20.5° | 0.75" | 8.5" |
| March | 43.7° | 22.0° | 32.8° | 1.31" | 4.7" |
| April | 57.8° | 34.3° | 46.1° | 2.88" | 2.8" |
| May | 69.8° | 46.7° | 58.3° | 4.08" | 0.1" |
| June | 79.8° | 58.2° | 69.0° | 4.66" | 0.0" |
| July | 83.3° | 61.8° | 72.5° | 3.55" | 0.0" |
| August | 80.2° | 59.0° | 69.6° | 2.99" | 0.0" |
| September | 73.6° | 50.3° | 62.0° | 2.90" | 0.0" |
| October | 60.0° | 36.4° | 48.2° | 2.21" | 0.8" |
| November | 43.5° | 23.0° | 33.3° | 1.15" | 4.8" |
| December | 29.4° | 11.3° | 20.3° | 0.77" | 7.4" |
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 |
|---|---|---|---|
| Inwood city | City | 1.2 mi | — |
| Fairview town | Town | 6.2 mi | — |
| Canton city | City | 6.4 mi | — |
| Alvord city | City | 8.1 mi | — |
| Larchwood city | City | 10.1 mi | — |
| Lester city | City | 11.1 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 51240. • 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.