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

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CO/HOLYOKE

Holyoke ZIP code, Colorado

The ZIP code for Holyoke, CO is 80734, and its area code is 970.

USPS city name
1 ZIP code
Population
2,382
Area code
970

Holyoke in numbers

About 2,382 people live in Holyoke, in 1,073 households. The median household income is $52,482 a year, 45% below the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $259,000 (52% below the Colorado median), and median gross rent is $1,077 a month. The median age is 40.2; 32.7% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 22 minutes.

Population2,382Holyoke2,382
Households1,073Holyoke1,073
Median age40.2Holyoke40.2Colorado37.7US 38.9
Median household income$52,482Holyoke$52,482Colorado$95,470US $80,734
Median home value$259,000Holyoke$259,000Colorado$539,400US $332,700
Median gross rent$1,077Holyoke$1,077Colorado$1,761US $1,413
Bachelor's degree or higher32.7%Holyoke32.7%Colorado45.7%US 35.7%
Mean commute22.4 minHolyoke22.4 minColorado25.2 minUS 26.4 min
Population density963 / sq miHolyoke963 / sq mi

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

ZIP codes addressed as Holyoke

ZIP codes with the USPS city name Holyoke
ZIP City Type Population Median income Median home
80734 Holyoke , CO Standard 2,999 $57,891 $277,100

Map of Holyoke ZIP codes

80734

The ZIP codes of Holyoke, 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 Holyoke

The nearest larger towns are Yuma (3,459 people, 39 mi), Sterling (13,172 people, 47 mi) and Ogallala, NE (4,777 people, 48 mi).

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

Cite this page

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

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