ZIP Codes of Lake County, CO

Population & People
Population & People
Total Population
7,380
Household Income
Household Income
Median Income
$100,688
Housing
Housing
Total Housing Units
3,983
Business & Economy
Business & Economy
Total Businesses
254
Employment
Employment
Employment Rate
74.22%
Education
Education
Bachelor's Degree+
49.50%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:3 ZIP Codes (2 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:719
Timezone:Mountain (GMT -07:00)
Local Time:11:52:51 PM
Population:7,380 [See All]
FIPS:08065
CBSA:Breckenridge, CO
Land Area:423 sq mi
Water Area:7 sq mi
Coordinates:39.2173, -106.3410
Quick Link:
https://www.zip-codes.com/county/co-lake.asp
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Colorado's #41 most populous county
7,380 residents across 3 ZIPs — #41 of 65 Colorado counties.

Standout ZIPs in this County


Most Populous
Leadville · 6,957 people
94.3% of county total
Highest Income
Twin Lakes · $105,600 median
1.0× county average
Largest Land Area
Leadville · 273.8 sq mi
Spans the most ground
Fastest Growth
Leadville · -3.0% (10-yr)
7,170 → 6,957 residents
Most Educated
Leadville · 48.1% bachelor's+
2,299 of 4,776 adults 25+

Things worth knowing about Lake County


7,380 residents live across 3 ZIPs covering 423 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 7,311 to 7,380 from 2014 to 2024 — a +0.9% change. 1 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 81251 (Twin Lakes, $105,600 median) and poorest ZIP 80461 (Leadville, $95,775) are 10.0 miles apart — a 1.1× income gap across local geography.

Median home values vary 1.5× across this county — from $458,400 in 80461 (Leadville) to $672,600 in 81251 (Twin Lakes).

Density varies across the county — from 3 people/sq mi in 81251 (Twin Lakes) to 25 in 80461 (Leadville).

Educational attainment ranges from 48.1% bachelor's+ in 80461 (Leadville) to 66.8% in 81251 (Twin Lakes) — the breadth of educational profiles across the area.

Within Colorado, this is the #41 most populous of 65 counties and ranks #11 for median household income .

Weighted by population, the typical household earns about $96,338 across the county — reflecting what a typical resident sees, not a simple ZIP average.

49.5% of adults age 25+ hold a bachelor's degree or higher (2,549 of 5,150 reporting).

2 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Lake County


Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Leadville

All ZIP Codes in Lake County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
80461LeadvilleStandard6,957$95,775273.8-3.0%
81251Twin LakesStandard423$105,600149.4200.0%
80429ClimaxPO Box0.0

Adjacent & Nearby Counties