ZIP Code 46531, Indiana
ZIP Code 46531 profile, demographic data, and geographic information.
ZCTA5 46531 is a 5-digit ZIP Code area located in Marshall County / Starke County, Indiana. As of official census estimates, it has a reported population of 1,825. The land area covers 21.21 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 1,825 | ±421 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 46.3 yrs | ±9 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 596 | ±156 | 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 | 626 | ±157 |
| Occupied Housing Units | 596 | ±156 |
| Vacant Housing Units | 30 | ±44 |
| Median Home Value | $141,900 | ±$43,788 |
| Median Gross Rent | Suppressed | — |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $57,786 | ±$15,349 |
| Per Capita Income | $26,230 | ±$8,273 |
| Poverty Rate | 17.6% | ±10.4% |
| Population Below Poverty Level | 305 | ±194 |
| Unemployment Rate | 0% | ±1.8% |
| Civilian Labor Force, Employed | 730 | ±275 |
| Broadband Internet Rate | 74.3% | ±4.5% |
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: 46,464 (2024)
ID: 163443
|
County | Official County Government |
Contact: PLAN DIRECTOR
112 W JEFFERSON ST, STE 302, PLYMOUTH IN 46563-1771
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | 06-12 | Argos, IN | |
| Regular School Nearby | PK-05 | Argos, IN | |
| Regular School Nearby | 06-12 | Culver, IN | |
| Regular School Nearby | PK-05 | Culver, IN | |
| Regular School Nearby | 07-08 | Walkerton, IN | |
| Regular School Nearby | PK-04 | LaPorte, IN | |
| Regular School Nearby | PK-04 | Plymouth, IN | |
| Regular School Nearby | 09-12 | Walkerton, IN | |
| Regular School Nearby | PK-04 | LaPorte, IN | |
| Regular School Nearby | PK-04 | Kingsford Heights, IN |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
Marian University-Ancilla
|
College | 4.0 mi away | 20097 9B Road, Plymouth, IN, 46563-9475 |
8662624552
|
|
HAMLET BRANCH
|
Library | 3.7 mi away | 6 NORTH STARKE STREET, HAMLET, IN, 46532 |
(574) 867-6033
|
|
Taylor Institute of Cosmetology II
|
College Vocational | 7.0 mi away | 320 E Culver Rd, Knox, IN, 46534 |
5747725500
|
|
KOONTZ LAKE BRANCH
|
Library | 4.5 mi away | 7954 NORTH STATE ROAD 23, WALKERTON, IN, 46574 |
(574) 586-3353
|
|
STARKE COUNTY PUBLIC LIBRARY SYSTEM
|
Library | 7.3 mi away | 152 WEST CULVER ROAD, KNOX, IN, 46534 |
(574) 772-7323
|
|
WALKERTON-LINCOLN TOWNSHIP PUBLIC LIBRARY
|
Library | 7.9 mi away | 406 ADAMS STREET, WALKERTON, IN, 46574 |
(574) 279-0177
|
|
CULVER-UNION TOWNSHIP PUBLIC LIBRARY
|
Library | 10.9 mi away | 107 NORTH MAIN STREET, CULVER, IN, 46511 |
(574) 842-2941
|
|
PLYMOUTH PUBLIC LIBRARY
|
Library | 10.9 mi away | 201 NORTH CENTER STREET, PLYMOUTH, IN, 46563 |
(574) 936-2324
|
|
KINGSFORD HEIGHTS BRANCH LIBRARY
|
Library | 12.5 mi away | 436 EVANSTON ROAD, KINGSFORD HEIGHTS, IN, 46346 |
(219) 393-3280
|
|
NORTH LIBERTY BRANCH
|
Library | 13.4 mi away | 105 EAST MARKET STREET, NORTH LIBERTY, IN, 46554 |
(574) 656-3664
|
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 KNOX WWTP, IN US, located 6.7 miles from ZCTA5 46531. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 31.9° | 15.8° | 23.8° | 2.73" | 9.7" |
| February | 35.4° | 18.2° | 26.8° | 2.44" | 7.5" |
| March | 47.3° | 28.0° | 37.7° | 2.53" | 3.4" |
| April | 60.5° | 37.7° | 49.1° | 3.75" | 0.2" |
| May | 70.9° | 49.1° | 60.0° | 4.45" | 0.0" |
| June | 79.7° | 58.6° | 69.1° | 4.65" | 0.0" |
| July | 82.4° | 61.9° | 72.1° | 4.35" | 0.0" |
| August | 80.8° | 59.9° | 70.4° | 4.48" | 0.0" |
| September | 74.0° | 52.3° | 63.2° | 3.47" | 0.0" |
| October | 62.9° | 41.9° | 52.4° | 3.59" | 0.0" |
| November | 48.6° | 31.5° | 40.0° | 3.17" | 2.0" |
| December | 37.1° | 22.4° | 29.8° | 2.61" | 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 |
|---|---|---|---|
| Groverton CDP | CDP | 1.5 mi | — |
| Hamlet town | Town | 3.7 mi | — |
| Donaldson CDP | CDP | 3.9 mi | — |
| Koontz Lake CDP | CDP | 4.4 mi | — |
| Knox city | City | 7.0 mi | — |
| Tyner CDP | CDP | 7.2 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 46531. • 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.