Browse / United States / Colorado / Eldora
Eldora
ColoradoCDP
Eldora
Total population
465
Median home value
$500,000
Bachelor's+
Median income
$0
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
Eldora, previously known as "Eldorado" then "El-Dora", then Eldora or Camp Eldorado, and still called Happy Valley, is an unincorporated community and a census-designated place (CDP) located in and governed by Boulder County, Colorado, United States. The CDP is a part of the Boulder, CO Metropolitan Statistical Area. The population of the Eldora CDP was 140 at the United States Census 2020. The Nederland post office serves the area.
Read more on WikipediaHistory & geography
History
Eldora was first settled by the Arapaho- and Ute people who used the area for hunting during summer. Eldora was originally built as a mining town. Although prospectors had been poking around in Eldora since the early 1850s, it was not until 1875 that enough gold was discovered to open a mine in Eldora. The primary decision to officially establish a town in the 1880s was in part an effort to open up further mining area, and in part an attempt at a through route into Middle Park and Western Colorado. Eldora boomed and prospered during the 1890s, and at one point, Eldora was home to as many as 1300–1500 people in the late 1890s. The Eldora, Colorado, post office operated from February 13, 1897, until May 19, 1967. The Nederland, Colorado, post office (ZIP code 80466) now serves the area. Despite its intensity of gold, silver and tungsten mining, Eldora's economic boom was brief. It peaked at the turn of the century, but experienced a devastating wildfire in 1899. With much of its timber lost, lumber that was vital to the mining construction was in short supply. The 21st century has experienced renewed interest in Eldora mining, with hopes of reopening the Mogul Tunnel Mine on Spencer Mountain.
Geography
Eldora is a small village located in the southwestern parts of Boulder County, Colorado. Eldora is located within the Roosevelt National Forest, at the base of Ute Mountains in the Middle Boulder Creek valley. It is situated immediately above the Colorado banana belt. The nearest town is Nederland, Colorado, four miles east of Eldora. From Boulder, CO, you follow Colorado 119 through Boulder Canyon to Nederland, CO, and then head south-west into Eldora. The Eldora CDP has an area of , including of water.
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 Eldora, CO 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
- Nederland Middle-Senior High SchoolHigh · NEDERLAND · 260 students · 13.7:1 ratio
- Nederland Elementary SchoolElementary · NEDERLAND · 193 students · 13.8:1 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
Nearby places in Colorado
- Nederland4.2 mi away · pop. 1,655
- Rollinsville4.5 mi away · pop. 264
- Bonanza Mountain Estates5.7 mi away
- St. Mary's10.3 mi away
- Sugarloaf10.3 mi away
- Gold Hill11.2 mi away
- Hidden Lake11.6 mi away
- Mountain Meadows11.7 mi away
- Bark Ranch13.4 mi away
- Sunshine13.5 mi away · pop. 330
- Tabernash13.8 mi away
- Glendale14.4 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 Eldora

Search results from Open Library.
Recent natural events nearby
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