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/ND/COUNTY/SLOPE

Slope County, ND ZIP codes

Slope County, ND has 2 ZIP codes, in 2 towns: 58647 and 58620. 3 more cross into it from neighbouring counties: 58623, 58651 and 58654.

The county seat is Amidon.

ZIP codes
2
Partly in it
3 more
Towns
2
County seat
Amidon
County FIPS
38087
Population
766
Median household income
$71,250
Land area
1,215 sq mi

Slope County ZIP codes by town

Amidon (county seat)
58620

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 Slope County

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

Map of Slope County ZIP codes

5862058647

The ZIP codes of Slope 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.

Slope County in numbers

About 766 people live in Slope County, in 374 households, the 53rd most populous of North Dakota's 53 counties. The median household income is $71,250 a year, 7% below the North Dakota median of $76,657 (US: $80,734). The median owner-occupied home is valued at $170,000 (32% below the North Dakota median), and median gross rent is $525 a month. The median age is 54.1; 29.3% of adults 25 and over hold a bachelor's degree or higher (32.7% across North Dakota); the average commute takes 21 minutes.

Population766Slope766
Households374Slope374
Median age54.1Slope54.1North Dakota35.9US 38.9
Median household income$71,250Slope$71,250North Dakota$76,657US $80,734
Median home value$170,000Slope$170,000North Dakota$249,900US $332,700
Median gross rent$525Slope$525North Dakota$954US $1,413
Bachelor's degree or higher29.3%Slope29.3%North Dakota32.7%US 35.7%
Mean commute21.0 minSlope21.0 minNorth Dakota17.9 minUS 26.4 min
Population density1 / sq miSlope1 / 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 Slope County

Largest towns in Slope County
TownZIP codesPopulation
New England 1 564
Amidon 1 6

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 Slope County.

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

Every ZIP code in Slope County, with figures

ZIP codes in Slope County
ZIP City Type Population Median income Median home
58620 Amidon , ND Standard 154 $76,875 —
58647 New England , ND Standard 1,053 $84,583 $227,300

Cite this page

zipcodes.pro. “Slope County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nd/county/slope

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