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 — CITY/CO/NIWOT

Niwot ZIP code, Colorado

The ZIP code for Niwot, CO is 80544, and its area codes are 720, 303 and 983.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
3,447
Area codes
720, 303, 983

NANPA lists no telephone rate centre for Niwot itself, so these are the area codes of the nearest one, Longmont (5.0 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Niwot uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Niwot in numbers

About 3,447 people live in Niwot, in 1,505 households. The median household income is $146,492 a year, 53% above the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $995,700 (85% above the Colorado median), and median gross rent is $1,414 a month. The median age is 54.6; 67.4% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 18 minutes.

Population3,447Niwot3,447
Households1,505Niwot1,505
Median age54.6Niwot54.6Colorado37.7US 38.9
Median household income$146,492Niwot$146,492Colorado$95,470US $80,734
Median home value$995,700Niwot$995,700Colorado$539,400US $332,700
Median gross rent$1,414Niwot$1,414Colorado$1,761US $1,413
Bachelor's degree or higher67.4%Niwot67.4%Colorado45.7%US 35.7%
Mean commute18.4 minNiwot18.4 minColorado25.2 minUS 26.4 min
Population density863 / sq miNiwot863 / sq mi

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

ZIP codes addressed as Niwot

ZIP codes with the USPS city name Niwot
ZIP City Type Population Median income Median home
80544 Niwot , CO Standard 0 — —

Other ZIP codes overlapping Niwot

These ZIP codes cover part of Niwot but are addressed as somewhere else.

ZIP codes overlapping Niwot
ZIP City Type Population Median income Median home
80503 Longmont , CO Standard 35,846 $113,620 $755,500

Map of Niwot ZIP codes

80544

The ZIP codes of Niwot, CO, 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.

Towns near Niwot

The nearest larger towns are Gunbarrel (10,051 people, 2.5 mi), Longmont (99,406 people, 5.8 mi) and Boulder (106,433 people, 7.0 mi).

Towns near Niwot
TownPopulationDistance
Gunbarrel 10,051 2.5 mi
Longmont 99,406 5.8 mi
Boulder 106,433 7.0 mi
Erie 33,808 7.5 mi
Lafayette 30,602 7.7 mi
Louisville 20,786 8.9 mi
Frederick 16,651 9.7 mi
Dacono 6,530 11.4 mi
Broomfield 76,304 11.5 mi
Superior 13,305 11.5 mi
Firestone 18,049 11.8 mi
Mead 5,919 12.7 mi
Northglenn 38,014 15.9 mi
Westminster 115,484 15.9 mi

More nearby: every ZIP code in Boulder County · Colorado ZIP codes

Cite this page

zipcodes.pro. “Niwot, CO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/co/niwot

Underlying data is public domain or openly licensed — sources, vintages and licences.