Browse / United States / South Dakota / Lake Madison
Lake Madison
South DakotaCDP
Total population
936
Median home value
$477,800
Bachelor's+
Median income
$129,191
Air quality index
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
City facts
Facts from Wikidata (CC0).
Overview
Lake Madison is an unincorporated community and census-designated place in Lake County, South Dakota, United States. Its population was 829 as of the 2020 census. The community is located on the shores of Lake Madison.
Read more on WikipediaHistory & geography
Geography
The community is in southeastern Lake County, surrounding Lake Madison. The CDP is southeast of Madison, the county seat. South Dakota Highway 34 forms the northern edge of the CDP. The highway leads west into Madison and east to Interstate 29. According to the U.S. Census Bureau, the community has an area of ; of its area is land, and is water. Lake Madison drains to the southeast, into Round Lake and then Brant Lake, and is part of the Big Sioux River watershed.
Excerpted from the corresponding Wikipedia article (CC BY-SA).
Demographics & economy
Race & ethnicity
Source: US Census Bureau — American Community Survey, 5-year estimates.
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
10-year averages from ERA5 reanalysis (Open-Meteo).
Current forecast
Forecast for Lake Madison, SD from NOAA NWS API.
Air quality
Current readings from Open-Meteo Air Quality API (Copernicus CAMS European reanalysis).
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Most-observed species
- House SparrowPasser domesticus (Linnaeus, 1758) · Aves598
- Blue JayCyanocitta cristata (Linnaeus, 1758) · Aves549
- Red-winged BlackbirdAgelaius phoeniceus (Linnaeus, 1766) · Aves514
- Downy WoodpeckerDryobates pubescens (Linnaeus, 1766) · Aves454
- American RobinTurdus migratorius Linnaeus, 1766 · Aves447
- Common GrackleQuiscalus quiscula (Linnaeus, 1758) · Aves437
- Mourning DoveZenaida macroura (Linnaeus, 1758) · Aves415
- Eurasian Collared-DoveStreptopelia decaocto (Frivaldszky, 1838) · Aves378
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
Largest nearby schools
- Madison Elementary - 07Elementary · Madison · 508 students · 14.5:1 ratio
- Madison High School - 01High · Madison · 382 students · 14.7:1 ratio
- Madison Middle School - 02Middle · Madison · 257 students · 12.2:1 ratio
- Chester Elementary -02Elementary · Chester · 159 students · 15.9:1 ratio
- Chester Area Cyber School - 92High · Chester · 123 students · 24.6:1 ratio
- Chester High School - 01High · Chester · 116 students · 12.9:1 ratio
- Rutland Elementary - 02Elementary · Rutland · 79 students · 9.9:1 ratio
- Chester Middle School - 03Middle · Chester · 75 students · 15:1 ratio
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
Earthquake history
Most recent
- M 2.7 — 2026-01-095 km ENE of Artesian, South Dakota
- M 2.7 — 2023-10-193 km E of Humboldt, South Dakota
- M 3.1 — 2005-10-197 km N of Howard, South Dakota
Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).
Photos
Sights & places nearby
Notable people from here






People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.
Nearby places in South Dakota
Geography & sun
Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.
Nearby airports
Public attention
Pageview totals from the Wikimedia Pageviews API.
Books about Lake Madison
Search results from Open Library.
Recent natural events nearby
- Taber Rec Wildfire, Bon Homme, South DakotaWildfires · 2026-04-22 · 82 mi
- Yellow Bank East RX Prescribed Fire, Lac qui Parle, MinnesotaWildfires · 2026-04-25 · 94 mi
- Jesson WPA RX Prescribed Fire, Spink, South DakotaWildfires · 2026-05-08 · 98 mi
- Rothi East RX Prescribed Fire, Big Stone, MinnesotaWildfires · 2026-05-10 · 101 mi
- Black Rush Lake RX Prescribed Fire, Swift, MinnesotaWildfires · 2026-05-04 · 109 mi
- Dismal Swamp RX Prescribed Fire, Big Stone, MinnesotaWildfires · 2026-04-15 · 111 mi
- Thomas Ranch Fire Wildfire, Sully, South DakotaWildfires · 2026-04-24 · 142 mi
- Burbank B RX Prescribed Fire, Kandiyohi, MinnesotaWildfires · 2026-05-01 · 143 mi
Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).
Ground air-quality sensors
Recently spotted species








Research-grade observations from iNaturalist (within ~15 mi).
Nearest stream gauge
Live readings from USGS NWIS · measured 2026-06-05 19:00 UTC.
Events
Gallery
Geotagged photos within ~6 miles of Lake Madison, from Wikimedia Commons contributors.
Photos via Wikimedia Commons — see each image page for license & attribution.
Sources
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • Open-Meteo (ERA5 reanalysis)
- • NOAA National Weather Service
- • Wikimedia Commons
- • Wikidata
- • Open-Meteo Air Quality (CAMS)
- • USGS Earthquake Catalog (global feed)
- • USGS NWIS (water data)
- • NCES via Urban Institute Education Data Portal
- • GBIF (Global Biodiversity Information Facility)
- • iNaturalist
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET
- • Wikidata SPARQL (CC0) — population, area, elevation, inception, head of government, Commons image