Browse / United States / Wyoming / Kemmerer
Kemmerer
Wyomingcity
Total population
2,972
Median home value
$178,900
Bachelor's+
Median income
$76,626
Founded
1897
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
Kemmerer is a city in and the county seat of Lincoln County, Wyoming, United States. The population was 2,415 at the 2020 census. Founded in 1897, the town grew up around the coal mines of the Ham's Fork field. The town was struck by one of the worst mining disasters in Wyoming history in 1923, and in the 2020s it became the site of TerraPower's Natrium reactor, the first utility-scale advanced nuclear power plant to begin construction in the United States.
Read more on WikipediaHistory & geography
History
The explorer John C. Frémont noted coal in the area during his second expedition in 1843. After the Oregon Short Line Railroad was built through the region, the Union Pacific Coal Company opened the first underground mine nearby in 1881. Kemmerer was founded in 1897 by Patrick J. Quealy (1857–1930), an Irish-born coal operator, in partnership with the Pennsylvania coal financier Mahlon S. Kemmerer, for whom Quealy named the town. In May 1897 Quealy and the Kemmerers organized four companies to develop the Ham's Fork coal field—the Kemmerer Coal Company, the Frontier Supply Company, the Ham's Fork Cattle Company, and the Uinta Improvement Company—with the Kemmerers providing the capital and Quealy, as vice-president and general manager, directing operations in Wyoming. Quealy insisted that both the coal company and the town be named for Mahlon Kemmerer over the objection of the financier's son, the attorney John L. Kemmerer, who favored "Frontier," "Wasatch," or "National" and cautioned that naming the town after an individual might prove awkward if the property were ever sold. When the Oregon Short Line proposed that the town's railroad depot instead be named "Diamondville," Quealy threatened to cancel the townsite agreement until the railroad accepted the name Kemmerer. Quealy laid out the townsite about a mile south of the company mining camp of Frontier and developed Kemmerer deliberately as an "independent town." Unlike the neighboring company towns of Frontier and Diamondville, where the coal companies leased land and housing to employees, the Short Line Land and Improvement Company—incorporated in February 1898 with Quealy as secretary—sold town lots outright to anyone who would build, while Quealy and Kemmerer retained the coal and mineral rights. This policy…
Geography
According to the United States Census Bureau, the city has a total area of 7.81 square miles (20.23 km2), of which 7.80 square miles (20.20 km2) is land and 0.01 square miles (0.03 km2) is water. Kemmerer sits at an elevation of about 6,949 feet (2,118 m) on the Ham's Fork River in southwestern Wyoming. Kemmerer lies within the Green River Formation's Fossil Lake beds, renowned for exceptionally preserved Eocene fish and other fossils; the town's motto, "An Aquarium in Stone," reflects this heritage, and both commercial and public fossil quarries operate in the area. Fossil Butte National Monument, about 15 miles (24 km) west on U.S. Highway 30, protects part of these fossil beds. According to the Köppen climate classification system, Kemmerer has a warm-summer humid continental climate, abbreviated "Dfb" on climate maps. The hottest temperature recorded in Kemmerer was 99 °F (37 °C) on July 12, 1990, while the coldest was −39 °F (−39 °C) on December 22, 1990.
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 Kemmerer, WY 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
Schools
Largest nearby schools
- Canyon Elementary SchoolElementary · Kemmerer · 320 students · 12.8:1 ratio
- Kemmerer Junior Senior High SchoolHigh · Kemmerer · 264 students · 14.7:1 ratio
- New Frontier High SchoolHigh · Kemmerer · 14 students · 7:1 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 Wyoming
- Diamondville0.9 mi away · pop. 665
- Oakley2.3 mi away · pop. 98
- Opal11.8 mi away · pop. 77
- Carter24.2 mi away
- Cokeville29.2 mi away · pop. 370
- Fontenelle29.6 mi away · pop. 3
- Taylor30 mi away · pop. 76
- Granger32.8 mi away · pop. 257
- Fort Bridger32.9 mi away · pop. 180
- Lyman33.8 mi away · pop. 1,858
- Urie34.3 mi away · pop. 164
- Bear River36.6 mi away · pop. 827
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 Kemmerer



Search results from Open Library.
Recent natural events nearby
- Wildfire Bare, Sublette, WyomingWildfires · 2026-08-04 · 68 mi
- Wildfire Rocky Canyon, Morgan, UtahWildfires · 2026-08-07 · 81 mi
- Wildfire Johnson Canyon, Box Elder, UtahWildfires · 2026-08-01 · 90 mi
- Prescribed Fire Bear River MBR Unit 2c RX, Box Elder, UtahWildfires · 2026-09-18 · 93 mi
- Wildfire Brushy Canyon, Box Elder, UtahWildfires · 2026-08-27 · 105 mi
- Wildfire Salt Wells, Box Elder, UtahWildfires · 2026-08-21 · 109 mi
- Wildfire WEISER KNOLL, Fremont, WyomingWildfires · 2026-08-09 · 116 mi
- Wildfire North Heglar, Cassia, IdahoWildfires · 2026-08-19 · 139 mi
Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).
Ground air-quality sensors
Recently spotted species
Nearest stream gauge
Events
Gallery
Sources
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Wikidata
- • NCES via Urban Institute Education Data Portal
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET