Browse / United States / Idaho / Caldwell
Caldwell
Idahocity
Caldwell
Total population
73,092
Median home value
$386,700
Bachelor's+
Median income
$78,835
Founded
1883
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
Caldwell is a city in and the county seat of Canyon County, Idaho, United States. Caldwell is the 5th most populous city in Idaho. As of the 2020 census, Caldwell had a population of 59,996.
Read more on WikipediaHistory & geography
History
The present-day location of Caldwell is along a natural passageway to the Inland and Pacific Northwest. Native American tribes from the west coast, north Idaho and as far away as Colorado came to the banks of the Boise River for annual trading fairs, or rendezvous. European and some Hawaiian explorers and traders soon followed the paths left by Native Americans and hopeful emigrants later forged the Oregon Trail and followed those paths to seek a better life in the Oregon Territory. Pioneers of the Trail traveled along the Boise River to Canyon Hill and forded the river close to the Silver Bridge on Plymouth Street. During the Civil War, the discovery of gold in Idaho's mountains brought a variety of new settlers into the area. Many never made it to the mines but settled along the Boise River and run ferries, stage stations, and freighting businesses. These early entrepreneurs created small ranches and farms in the river valleys. Caldwell's inception occurred largely as a result of the construction of the Oregon Short Line Railroad, which connected Wyoming to Oregon through Idaho. Robert E. Strahorn came to the Boise River Valley in 1883 to select a route for the railroad. He rejected the grade into Boise City as too steep and chose a site 30 miles to the west. He drove a stake into an alkali flat of sagebrush and greasewood and the City of Caldwell was platted. Caldwell was named after one of Strahorn's business partners, Alexander Caldwell, a former senator from Kansas. When Caldwell was platted in August 1883, its founder, the Idaho and Oregon Land Improvement Company, started persuading settlers and businessmen to move to the area. Within four months, Caldwell had 600 residents living in 150 dwellings, 40 businesses, a school, a telephone exchange, and two…
Geography
According to the United States Census Bureau, the city has an area of , of which is land and is water. Caldwell experiences a semi-arid climate (Köppen BSk) with cold and moderately wet winters and hot, dry summers.
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
Air quality
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Schools
Largest nearby schools
- RIDGEVUE HIGH SCHOOLHigh · NAMPA · 1,578 students · 21.9:1 ratio
- NAMPA SENIOR HIGH SCHOOLHigh · NAMPA · 1,482 students · 21.8:1 ratio
- CALDWELL SENIOR HIGH SCHOOLHigh · CALDWELL · 1,474 students · 21.7:1 ratio
- MIDDLETON HIGH SCHOOLHigh · MIDDLETON · 1,364 students · 22.4:1 ratio
- IDAHO ARTS CHARTER SCHOOLOther · NAMPA · 1,303 students · 17.4:1 ratio
- COLUMBIA HIGH SCHOOLHigh · NAMPA · 1,239 students · 20.6:1 ratio
- VALLIVUE HIGH SCHOOLHigh · CALDWELL · 1,235 students · 19:1 ratio
- SKYVIEW HIGH SCHOOLHigh · NAMPA · 1,152 students · 17.5:1 ratio
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
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 Idaho
- Middleton5.1 mi away · pop. 10,649
- Nampa6.3 mi away · pop. 117,346
- Greenleaf8.3 mi away · pop. 1,482
- Notus9 mi away · pop. 573
- Star9.3 mi away · pop. 14,745
- Marsing10.2 mi away · pop. 1,306
- Wilder12.6 mi away · pop. 2,074
- Meridian13.2 mi away · pop. 139,736
- Homedale14.1 mi away · pop. 3,069
- Kuna15.3 mi away · pop. 27,158
- Eagle16 mi away · pop. 32,855
- Letha17.1 mi away · pop. 109
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 Caldwell



Search results from Open Library.
Recent natural events nearby
- Wildfire FLINT, Owyhee, IdahoWildfires · 2026-08-24 · 53 mi
- Wildfire CROOKED, Boise, IdahoWildfires · 2026-08-18 · 58 mi
- Wildfire MUSTANG, Malheur, OregonWildfires · 2026-08-25 · 78 mi
- Wildfire McCulley, Baker, OregonWildfires · 2026-08-22 · 115 mi
- Wildfire Calico, Humboldt, NevadaWildfires · 2026-08-26 · 128 mi
- Wildfire California Creek, Elko, NevadaWildfires · 2026-08-25 · 131 mi
- Wildfire Eggo, Wallowa, OregonWildfires · 2026-08-01 · 141 mi
- Wildfire Shale Butte, Lincoln, IdahoWildfires · 2026-08-22 · 149 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)
- • Wikidata
- • NCES via Urban Institute Education Data Portal
- • iNaturalist
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET