Browse / United States / South Dakota / Millbrook Colony
Millbrook Colony
South DakotaCDP
Total population
47
Median home value
$0
Bachelor's+
Median income
$0
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
Millbrook Colony is a tiny census-designated community that lies in South Dakota, United States. Census-style estimates put the resident count near 47. Geographically it lies in the northern hemisphere at a temperate latitude (43.668°, -97.871°). The administrative footprint covers a compact 0.6 km². At 78 people per km², the census-designated community shows loosely populated. Open solar datasets indicate about 1,518 kWh/m² of solar irradiance per year, combined with sunshine for roughly 59% of daylight hours. Based on its temperate position, residents likely encounter four distinct seasons with warm summers and cold winters. The remainder of this page draws on open public data to describe the area's demographics, climate, environment and nearby amenities.
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 Millbrook Colony, 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
- American RobinTurdus migratorius Linnaeus, 1766 · Aves256
- Common GrackleQuiscalus quiscula (Linnaeus, 1758) · Aves236
- Mourning DoveZenaida macroura (Linnaeus, 1758) · Aves220
- Red-winged BlackbirdAgelaius phoeniceus (Linnaeus, 1766) · Aves173
- Boxelder BugBoisea trivittata (Say, 1825) · Insecta164
- House SparrowPasser domesticus (Linnaeus, 1758) · Aves153
- Harlequin ladybird, Asian ladybird, Asian ladybeetleHarmonia axyridis (Pallas, 1773) · Insecta146
- European StarlingSturnus vulgaris Linnaeus, 1758 · Aves142
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 2.5 — 2024-03-066 km SSE of Santee, Nebraska
- M 2.7 — 2023-10-193 km E of Humboldt, South Dakota
- M 2.5 — 2022-01-169 km NE of Plankinton, South Dakota
- M 3.1 — 2021-01-045 km N of Tyndall, South Dakota
- M 2.5 — 2020-08-2510 km N of Platte, 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
- Rosedale Colony2.9 mi away
- Fulton4.8 mi away · pop. 84
- Rockport Colony6.1 mi away
- Ethan10.1 mi away · pop. 346
- New Elm Spring Colony12.5 mi away
- Old Elm Spring Colony12.6 mi away
- Oak Lane Colony12.7 mi away
- Spencer14.6 mi away
- Upland Colony15.4 mi away
- Mount Vernon19.7 mi away
- Golden View Colony21.4 mi away
- Tschetter Colony22.5 mi away
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 this place
Recent natural events nearby
- Wildfire Potato Creek, Jackson, South DakotaWildfires · 2026-08-01 · 210 mi
- Wildfire Potato Creek, Jackson, South DakotaWildfires · 2026-07-27 · 210 mi
- Wildfire Needles, Oglala Lakota, South DakotaWildfires · 2026-09-04 · 224 mi
- Wildfire Rancher fire, Oglala Lakota, South DakotaWildfires · 2026-08-11 · 225 mi
- Wildfire Duhamel, Pennington, South DakotaWildfires · 2026-07-29 · 225 mi
- Wildfire XU Hill, Oglala Lakota, South DakotaWildfires · 2026-08-11 · 228 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
Events
Gallery
Sources
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Wikidata
- • Open-Meteo Air Quality (CAMS)
- • USGS Earthquake Catalog (global feed)
- • GBIF (Global Biodiversity Information Facility)
- • iNaturalist
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • NASA EONET