Chelsea

Featured view

Chelsea

Total population

61

Median home value

$0

22.9%

Bachelor's+

Median income

$0

Founded

1906

Elevation412 m

Land area0.82 km²

Weather44°F · Mostly Cloudy

Coordinates45.17°, -98.74°

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

Chelsea is a town in Faulk County, South Dakota, United States. The population was 19 at the 2020 census.

History & geography

Excerpted from the corresponding Wikipedia article (CC BY-SA).

Demographics & economy

Source: US Census Bureau — American Community Survey, 5-year estimates.

Geography

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Current forecast

Forecast for Chelsea, SD from NOAA NWS API.

Wildlife & biodiversity

Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).

Earthquake history

Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).

Notable people from here

People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.

Nearby places in South Dakota

• Evergreen Colony
  14.9 mi away
• Rockham
  18.6 mi away
• Pembrook Colony
  18.7 mi away
• Blumengard Colony
  21.4 mi away
• Redfield
  23.1 mi away
• Thunderbird Colony
  25.3 mi away
• Brentwood Colony
  27.2 mi away
• Prairiewood Village
  28.4 mi away
• Tulare
  31.8 mi away
• Roscoe
  34.8 mi away
• Onaka
  35.2 mi away
• Seneca
  38.1 mi away

Browse all places in South Dakota →

Geography & sun

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Public attention

Pageview totals from the Wikimedia Pageviews API.

Books about Chelsea

South Dakota

Victoria Hammond · 2019

The Great Plains

Thomas G. Aylesworth · 1988

Flood insurance study

United States. Federal Insurance Administration. · 1977

Great Plains

Thomas G. Aylesworth · 1989

Mount Rushmore

William David Thomas · 2010

Search results from Open Library.

Recent natural events nearby

• Wildfire XU Hill, Oglala Lakota, South Dakota
  Wildfires · 2026-08-11 · 211 mi
• Wildfire Needles, Oglala Lakota, South Dakota
  Wildfires · 2026-09-04 · 219 mi
• Wildfire Rancher fire, Oglala Lakota, South Dakota
  Wildfires · 2026-08-11 · 219 mi

Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).

Recently spotted species

Western Tiger Salamander

Ambystoma mavortium

Seen 2026-03-25

Common Merganser

Mergus merganser

Seen 2026-03-08

Green-winged Teal

Anas crecca

Seen 2026-03-07

American Wigeon

Mareca americana

Seen 2026-03-07

Hooded Merganser

Lophodytes cucullatus

Seen 2026-03-07

Mallard

Anas platyrhynchos

Seen 2026-03-07

Northern Pintail

Anas acuta

Seen 2026-03-07

Cinnamon Teal

Spatula cyanoptera

Seen 2026-03-04

Redhead

Aythya americana

Seen 2026-03-04

Research-grade observations from iNaturalist (within ~15 mi).

Nearest stream gauge

Live readings from USGS NWIS · measured 2026-10-19 01:45 UTC.