Irwin township, South Dakota
Irwin township profile, demographic data, and geographic information.
Irwin township is a geographic entity located in Tripp County, South Dakota. As of official census estimates, it has a reported population of 22. The land area covers 35.70 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 22 | — | 2025 / Census |
| Median Age | Suppressed | — | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 0 | ±10 | 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 | 0 | ±10 |
| Occupied Housing Units | 0 | ±10 |
| Vacant Housing Units | 0 | ±10 |
| Median Home Value | Suppressed | — |
| 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 | Suppressed | — |
| Per Capita Income | Suppressed | — |
| Population Below Poverty Level | 0 | ±10 |
| Population Below Poverty Level | 0 | ±10 |
| Civilian Labor Force, Unemployed | 0 | ±10 |
| Civilian Labor Force, Employed | 0 | ±10 |
| Broadband Internet Subscriptions | 0 | ±10 |
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 |
|---|---|---|---|
|
TOWNSHIP OF IRWIN
GUS Population: 22 (2024)
ID: 175621
|
Township | Official Local Government |
Contact: CHAIRMAN
28479 329TH AVE, DALLAS SD 57529-6331
|
|
COUNTY OF TRIPP
GUS Population: 5,717 (2024)
ID: 175007
|
County | Official County Government |
Contact: CHAIRMAN
200 E 3RD ST, WINNER SD 57580-1806
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | PK-05 | Burke, SD | |
| Regular School Nearby | 09-12 | Burke, SD | |
| Regular School Nearby | 06-08 | Burke, SD | |
| Regular School Nearby | PK-05 | Colome, SD | |
| Regular School Nearby | 09-12 | Colome, SD | |
| Regular School Nearby | 06-08 | Colome, SD | |
| Regular School Nearby | PK-05 | Gregory, SD | |
| Regular School Nearby | 09-12 | Gregory, SD | |
| Regular School Nearby | 06-08 | Gregory, SD | |
| Regular School Nearby | 06-12 | Burke, SD |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 3 civic institutions across 1 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
GREGORY PUBLIC LIBRARY
|
Library | 8.1 mi away | 112 EAST FIFTH STREET, GREGORY, SD, 57533 |
(605) 835-8531
|
|
TRIPP COUNTY LIBRARY - GROSSENBURG MEMORIAL
|
Library | 15.8 mi away | 442 MONROE STREET, WINNER, SD, 57580 |
(605) 842-0330
|
|
BURKE PUBLIC LIBRARY
|
Library | 15.8 mi away | 704 MAIN, BURKE, SD, 57523 |
(605) 775-2373
|
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 GREGORY, SD US, located 7.8 miles from Irwin township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 31.6° | 10.1° | 20.9° | 0.55" | 6.8" |
| February | 35.9° | 13.1° | 24.5° | 0.75" | 8.5" |
| March | 46.8° | 22.5° | 34.7° | 1.34" | 5.3" |
| April | 57.6° | 33.3° | 45.4° | 3.12" | 5.4" |
| May | 68.8° | 45.0° | 56.9° | 4.13" | 0.0" |
| June | 79.6° | 55.9° | 67.8° | 4.18" | 0.0" |
| July | 86.6° | 61.7° | 74.2° | 2.99" | 0.0" |
| August | 84.7° | 59.3° | 72.0° | 3.14" | 0.0" |
| September | 76.7° | 49.6° | 63.1° | 2.41" | 0.0" |
| October | 61.6° | 35.7° | 48.7° | 2.36" | 1.7" |
| November | 46.8° | 23.0° | 34.9° | 0.95" | 6.9" |
| December | 34.5° | 13.8° | 24.2° | 0.74" | 10.4" |
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 |
|---|---|---|---|
| Dallas town | Town | 4.8 mi | — |
| Colome city | City | 8.3 mi | — |
| Gregory city | City | 8.6 mi | — |
| Winner city | City | 15.7 mi | — |
| Burke city | City | 15.8 mi | — |
| Hamill CDP | CDP | 21.4 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 4612332100. • 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.