Browse / United States / California / Colusa
Colusa
Californiacity
Colusa
Total population
6,505
Median home value
$375,000
Bachelor's+
Median income
$71,250
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
Colusa is a city in and the county seat of Colusa County, California, United States, located in the Sacramento Valley region of the Central Valley. The population was 6,411 at the 2020 census, up from 5,971 at the 2010 census. Colusa originates from the local Coru Native American tribe, who in the 1840s lived on the opposite side of the Sacramento River.
Read more on WikipediaHistory & geography
History
In 1850, Charles D. Semple purchased the Rancho Colus Mexican land grant on which Colusa was founded and called the place Salmon Bend. The town was founded, under the name Colusi, by Semple in 1850. The first post office was established the following year, 1851. The California legislature changed the town's (and the county's) name to Colusa in 1854. The town flourished due to its location on the Southern Pacific Railroad. Several travelers rest stops were established at various road distances from Colusa, including Five Mile House, Seven Mile House, Nine Mile House, Ten Mile House, Eleven Mile House, Fourteen Mile House (also called Sterling Ranch), Sixteen Mile House (at the current location of Princeton), and Seventeen Mile House. The original settlement of what became Colusa was originally placed at the site of Seven Mile House but subsequently removed to its current site in 1850. On July 10, 1887, convicted murderer Hong Di, an immigrant from China, was dragged from the Colusa jail and was forced by over a hundred and fifty men through the streets of Colusa's Chinatown, before he was hanged from the rafters of the locomotive turntable of the Colusa and Lake Railroad. Di, who had worked as a servant for the Billiou family of St. Johns, California, had shot and killed his employer Julie Billiou on April 7, 1887. He was captured on May 22, 1887, near Gridley, California.
Geography
According to the United States Census Bureau, the city has a total area of , all land. According to the United States Geological Survey, the city's location is at . Colusa is on the Sacramento River, which has a high levee so that the river is not clearly apparent from the city. Colusa features a historic Chinatown, Carnegie Library building constructed in 1905, and an architecturally noteworthy courthouse built in a classical style, among its historically notable buildings. According to the Köppen Climate Classification system, Colusa has a warm-summer Mediterranean climate, abbreviated "Csa" on climate maps. During December 1996–January 1997, the nearby Colusa Weir Gauge reached flood stage. This historic flooding event devastated the region by destroying thousands of crop acres (rice, tomatoes, alfalfa) and property. The Colusa Weir Gauge reached flood stage on January 3, 1997.
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
Current forecast
Forecast for Colusa, CA from NOAA NWS API.
Air quality
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
- Turkey VultureCathartes aura (Linnaeus, 1758) · Aves4,242
- Red-tailed HawkButeo jamaicensis (Gmelin, 1788) · Aves4,211
- Great EgretArdea alba Linnaeus, 1758 · Aves4,091
- Red-winged BlackbirdAgelaius phoeniceus (Linnaeus, 1766) · Aves3,972
- Black PhoebeSayornis nigricans (Swainson, 1827) · Aves3,806
- Greater White-fronted GooseAnser albifrons (Scopoli, 1769) · Aves3,599
- Northern ShovelerSpatula clypeata (Linnaeus, 1758) · Aves3,542
- KilldeerCharadrius vociferus Linnaeus, 1758 · Aves3,441
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
Earthquake history
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 California
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 Colusa



Search results from Open Library.
Recent natural events nearby
- Wildfire FELIZ, Mendocino, CaliforniaWildfires · 2026-08-01 · 63 mi
- Wildfire GANN, Calaveras, CaliforniaWildfires · 2026-08-03 · 101 mi
- Wildfire BROOK, Shasta, CaliforniaWildfires · 2026-07-18 · 104 mi
- Wildfire Bug, Lassen, CaliforniaWildfires · 2026-08-08 · 111 mi
- Wildfire Hawk, Washoe, NevadaWildfires · 2026-08-22 · 112 mi
- Wildfire Hawk, Washoe, NevadaWildfires · 2026-08-22 · 112 mi
- Wildfire Fred Mt, Washoe, NevadaWildfires · 2026-08-09 · 122 mi
- Wildfire BISCAR, Lassen, CaliforniaWildfires · 2026-07-18 · 133 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
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Wikidata
- • GBIF (Global Biodiversity Information Facility)
- • iNaturalist
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET