Sangamon Valley township, Illinois
Sangamon Valley township profile, demographic data, and geographic information.
Sangamon Valley township is a geographic entity located in Cass County, Illinois. As of official census estimates, it has a reported population of 314. The land area covers 39.64 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 314 | — | 2025 / Census |
| Median Age | 38.5 yrs | ±19.2 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 218 | ±115 | 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 | 292 | ±117 |
| Occupied Housing Units | 218 | ±115 |
| Vacant Housing Units | 74 | ±59 |
| 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 | $128,505 | ±$24,973 |
| Per Capita Income | $63,543 | ±$21,392 |
| Poverty Rate | 0.8% | ±1.6% |
| Population Below Poverty Level | 4 | ±8 |
| Unemployment Rate | 0% | ±6.8% |
| Civilian Labor Force, Employed | 192 | ±122 |
| Broadband Internet Rate | 100% | ±0% |
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 SANGAMON VALLEY
GUS Population: 326 (2024)
ID: 225529
|
Township | Official Local Government |
Contact: SUPERVISOR
PO BOX 201, CHANDLERVILLE IL 62627-0201
|
|
COUNTY OF CASS
GUS Population: 12,713 (2024)
ID: 184897
|
County | Official County Government |
Contact: CASS COUNTY TREASURER
100 E SPRINGFIELD ST, VIRGINIA IL 62691-1322
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | PK-04 | Chandlerville, IL | |
| Regular School Nearby | 09-12 | Ashland, IL | |
| Regular School Nearby | 05-08 | Ashland, IL | |
| Regular School Nearby | PK-05 | Astoria, IL | |
| Regular School Nearby | 09-12 | Astoria, IL | |
| Regular School Nearby | 06-08 | Astoria, IL | |
| Regular School Nearby | 05-12 | Beardstown, IL | |
| Regular School Nearby | PK-04 | Beardstown, IL | |
| Regular School Nearby | PK-06 | Concord, IL | |
| Regular School Nearby | 07-12 | Concord, IL |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
Illinois College
|
College | 19.6 mi away | 1101 West College Ave, Jacksonville, IL, 62650-2299 |
2172453000
|
|
VIRGINIA MEMORIAL PUBLIC LIBRARY
|
Library | 4.3 mi away | 100 NORTH MAIN STREET, VIRGINIA, IL, 62691 |
(217) 452-3846
|
|
BEARDSTOWN HOUSTON MEMORIAL PUBLIC LIBRARY
|
Library | 11.2 mi away | 13 BOULEVARD ROAD, BEARDSTOWN, IL, 62618 |
(217) 323-4204
|
|
PRAIRIE SKIES PUBLIC LIBRARY DISTRICT
|
Library | 14.0 mi away | 125 WEST EDITOR STREET, ASHLAND, IL, 62612 |
(217) 476-3417
|
|
ASTORIA PUBLIC LIBRARY DISTRICT
|
Library | 16.6 mi away | 220 WEST BROADWAY STREET, ASTORIA, IL, 61501 |
(309) 329-2423
|
|
PRAIRIE SKIES PUBLIC LIBRARY DISTRICT BRANCH
|
Library | 18.1 mi away | 555 BUCKEYE ROAD, PLEASANT PLAINS, IL, 62677 |
(217) 626-1553
|
|
JACKSONVILLE PUBLIC LIBRARY
|
Library | 19.4 mi away | 201 WEST COLLEGE AVENUE, JACKSONVILLE, IL, 62650 |
(217) 243-5435
|
|
PETERSBURG PUBLIC LIBRARY
|
Library | 19.5 mi away | 220 SOUTH SIXTH STREET, PETERSBURG, IL, 62675 |
(217) 632-2807
|
|
RUSHVILLE PUBLIC LIBRARY
|
Library | 20.0 mi away | 514 MAPLE AVENUE, RUSHVILLE, IL, 62681 |
(217) 322-3030
|
|
HAVANA PUBLIC LIBRARY DISTRICT
|
Library | 21.3 mi away | 201 WEST ADAMS STREET, HAVANA, IL, 62644 |
(309) 543-4701
|
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 JACKSONVILLE 2E, IL US, located 19.3 miles from Sangamon Valley township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 36.0° | 18.1° | 27.1° | 1.93" | 5.1" |
| February | 41.1° | 21.4° | 31.2° | 1.72" | 4.3" |
| March | 52.4° | 30.1° | 41.2° | 2.81" | 2.0" |
| April | 64.9° | 40.3° | 52.6° | 4.27" | 0.3" |
| May | 74.8° | 51.7° | 63.3° | 4.82" | 0.0" |
| June | 83.3° | 60.8° | 72.1° | 4.89" | 0.0" |
| July | 86.5° | 64.0° | 75.3° | 3.96" | 0.0" |
| August | 85.2° | 61.7° | 73.4° | 3.39" | 0.0" |
| September | 80.0° | 53.5° | 66.7° | 3.50" | 0.0" |
| October | 67.7° | 42.3° | 55.0° | 2.97" | 0.0" |
| November | 53.0° | 31.9° | 42.5° | 3.01" | 1.0" |
| December | 41.2° | 23.3° | 32.2° | 1.98" | 3.5" |
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 |
|---|---|---|---|
| Chandlerville village | Village | 4.1 mi | — |
| Virginia city | City | 4.2 mi | — |
| Literberry CDP | CDP | 11.2 mi | — |
| Beardstown city | City | 11.4 mi | — |
| Browning village | Village | 11.4 mi | — |
| Arenzville village | Village | 12.3 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1701767600. • 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.