Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/CO/COUNTY/JEFFERSON

Jefferson County, CO ZIP codes

There are 34 ZIP codes in Jefferson County, CO, in 14 towns, from 80001 to 80470. The largest are 80123 (Littleton), 80127 (Littleton) and 80401 (Golden). 2 more cross into it from neighbouring counties: 80439 and 80135.

The county seat is Golden.

ZIP codes
34
Partly in it
2 more
Towns
14
County seat
Golden
County FIPS
08059
Population
579,377
Median household income
$110,656
Land area
764 sq mi
Area codes
303, 720, 983

Jefferson County ZIP codes by town

Golden (county seat)
80401, 80402, 80403, 80419

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Jefferson County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Jefferson County.

Map of Jefferson County ZIP codes

80001800028000380004800058000680007800218003380034801238012780128801628021480215802258022680227802288023280235804018040280403804198042580433804378045380454804578046580470

The ZIP codes of Jefferson County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Jefferson County in numbers

About 579,377 people live in Jefferson County, in 241,735 households, the 4th most populous of Colorado's 64 counties. The median household income is $110,656 a year, 16% above the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $637,600 (18% above the Colorado median), and median gross rent is $1,861 a month. The median age is 40.5; 52.0% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 26 minutes.

Population579,377Jefferson579,377
Households241,735Jefferson241,735
Median age40.5Jefferson40.5Colorado37.7US 38.9
Median household income$110,656Jefferson$110,656Colorado$95,470US $80,734
Median home value$637,600Jefferson$637,600Colorado$539,400US $332,700
Median gross rent$1,861Jefferson$1,861Colorado$1,761US $1,413
Bachelor's degree or higher52.0%Jefferson52.0%Colorado45.7%US 35.7%
Mean commute26.0 minJefferson26.0 minColorado25.2 minUS 26.4 min
Population density758 / sq miJefferson758 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Jefferson County

Largest towns in Jefferson County
TownZIP codesPopulation
Denver 8 718,877
Arvada 7 122,634
Broomfield 1 76,304
Littleton 4 44,710
Wheat Ridge 2 32,070
Golden 4 20,417
Evergreen 1 8,602
Conifer 1 8,292
Pine 1 3,608
Indian Hills 1 986
Kittredge 1 812
Morrison 1 412
Idledale 1 297
Buffalo Creek 1 243

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Jefferson County.

Not sure you are in Jefferson County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Jefferson County, with figures

ZIP codes in Jefferson County
ZIP City Type Population Median income Median home
80001 Arvada , CO No street area — — —
80002 Arvada , CO Standard 21,270 $93,362 $558,500
80003 Arvada , CO Standard 35,976 $91,464 $534,700
80004 Arvada , CO Standard 33,700 $103,659 $616,700
80005 Arvada , CO Standard 28,459 $136,821 $649,800
80006 Arvada , CO No street area — — —
80007 Arvada , CO Standard 19,078 $176,122 $872,000
80021 Broomfield , CO Standard 36,555 $110,038 $568,000
80033 Wheat Ridge , CO Standard 26,485 $89,627 $609,800
80034 Wheat Ridge , CO No street area — — —
80123 Littleton , CO Standard 44,549 $105,932 $620,100
80127 Littleton , CO Standard 43,494 $137,040 $693,200
80128 Littleton , CO Standard 36,712 $121,436 $586,000
80162 Littleton , CO No street area — — —
80214 Denver , CO Standard 27,022 $75,575 $559,100
80215 Denver , CO Standard 19,839 $85,190 $650,100
80225 Denver , CO No street area — — —
80226 Denver , CO Standard 31,573 $82,300 $568,300
80227 Denver , CO Standard 34,907 $90,316 $559,200
80228 Denver , CO Standard 34,942 $113,977 $641,300
80232 Denver , CO Standard 23,050 $96,217 $521,600
80235 Denver , CO Standard 8,373 $70,484 $547,000
80401 Golden , CO Standard 43,811 $118,039 $804,500
80402 Golden , CO No street area — — —
80403 Golden , CO Standard 20,732 $151,276 $838,000
80419 Golden , CO Standard 0 — —
80425 Buffalo Creek , CO Standard 243 $82,188 $671,900
80433 Conifer , CO Standard 8,292 $134,402 $772,600
80437 Evergreen , CO No street area — — —
80453 Idledale , CO Standard 297 — $451,900
80454 Indian Hills , CO Standard 986 $178,980 $789,200
80457 Kittredge , CO Standard 283 $235,160 $464,100
80465 Morrison , CO Standard 16,582 $132,292 $685,300
80470 Pine , CO Standard 3,608 $135,682 $681,300

Cite this page

zipcodes.pro. “Jefferson County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/co/county/jefferson

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