Browse / United States / South Dakota / Erwin
Erwin
South Dakotatown
Total population
105
Median home value
$0
Bachelor's+
Median income
$86,250
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
Overview
Within South Dakota, United States, Erwin stands as a small town. Around 105 people are recorded as living there in the most recent open data. Erwin maps to 44.488°, -97.441° — squarely within the temperate belt. The location receives about 1,490 kWh/m² of solar irradiance per year and sunshine for roughly 58% of daylight hours. It covers a compact 1.2 km² of land area. Its latitude implies a climate characterised by four distinct seasons with warm summers and cold winters. Population density therefore averages about 88 per km², a relatively low population density. Detailed open-data panels follow, covering demographics, climate, geography, wildlife and nearby settlements.
Summary composed automatically from structured open data on this page. See our Terms for details.
History & geography
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
Current forecast
Forecast for Erwin, 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)
Walkability
Amenities nearby
Wildlife & biodiversity
Most-observed species
- Red-winged BlackbirdAgelaius phoeniceus (Linnaeus, 1766) · Aves61
- Canada Goose (canadensis Group)Branta canadensis (Linnaeus, 1758) · Aves55
- KilldeerCharadrius vociferus Linnaeus, 1758 · Aves49
- MallardAnas platyrhynchos Linnaeus, 1758 · Aves45
- American White PelicanPelecanus erythrorhynchos Gmelin, 1789 · Aves42
- Blue-winged TealSpatula discors (Linnaeus, 1766) · Aves42
- Common GrackleQuiscalus quiscula (Linnaeus, 1758) · Aves41
- Great EgretArdea alba Linnaeus, 1758 · Aves40
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
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
- M 3.1 — 2002-07-260 km WSW of Huron, South Dakota
Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).
Photos
Sights & places nearby
Notable people from here
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 Erwin

Search results from Open Library.
Recent natural events nearby
Ground air-quality sensors
Recently spotted species
Nearest stream gauge
Events
Gallery
Sources
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Open-Meteo Air Quality (CAMS)
- • USGS Earthquake Catalog (global feed)
- • GBIF (Global Biodiversity Information Facility)
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library