ZIP Codes of San Juan County, CO

Population & People
Population & People
Total Population
651
Household Income
Household Income
Median Income
$62,317
Housing
Housing
Total Housing Units
583
Business & Economy
Business & Economy
Total Businesses
75
Employment
Employment
Employment Rate
69.81%
Education
Education
Bachelor's Degree+
50.95%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 1 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:1 ZIP Codes (0 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:970
Timezone:Mountain (GMT -07:00)
Local Time:2:11:34 PM
Population:651 [See All]
FIPS:08111
Land Area:261 sq mi
Water Area:1 sq mi
Coordinates:37.8140, -107.5843
Quick Link:
https://www.zip-codes.com/county/co-san-juan.asp
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Among Colorado's 5 most renter-heavy counties
51.4% of homes rented — #2 statewide.

Standout ZIPs in this County


Most Populous
Silverton · 651 people
100.0% of county total
Highest Income
Silverton · $62,317 median
1.0× county average
Largest Land Area
Silverton · 260.8 sq mi
Spans the most ground
Fastest Growth
— growth not calculable
Most Educated
— no education data

Things worth knowing about San Juan County


651 residents live across 1 ZIPs covering 261 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 616 to 651 from 2014 to 2024 — a +5.7% change. 1 ZIPs gained residents, 0 lost.

The county's wealthiest ZIP 81433 (Silverton, $62,317 median) and poorest ZIP 81433 (Silverton, $62,317) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Colorado, this is the #65 most populous of 65 counties and ranks #47 for median household income with the #34 fastest decade growth .

Weighted by population, the typical household earns about $62,317 across the county — reflecting what a typical resident sees, not a simple ZIP average.

51.0% of adults age 25+ hold a bachelor's degree or higher (267 of 524 reporting).

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

All ZIP Codes in San Juan County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
81433SilvertonPO Box651$62,317260.85.7%

Adjacent & Nearby Counties