What city is ZIP code 58323?

ZIP code 58323 is in Calvin, ND (Cavalier County).

What county is ZIP code 58323 in?

ZIP code 58323 is mostly in Cavalier County, North Dakota.

How many people live in ZIP code 58323?

About 72 people live in the 58323 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 58323

Calvin, ND, Cavalier County

Population

Land area

75.6sq mi

People per sq mi

City

Calvin

ZIP 58323 and nearby ZIP codes

Full map

ZIP 58323 at a glance

ZIP 58323 (Calvin) is 92% less dense than North Dakota as a whole.

Economy and federal money

Businesses, pandemic loans and political donations

Details

PPP loans

$344K

16 loans

Campaign donations

$203

0% D, 100% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 58323, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: winter weather

Storm events since 1996

661

Countywide, mostly hail

July high / Jan low

81° / -5°F

19.0 inches of rain a year

Hazards, floods and storm history Check a flood zone

Frequently asked questions

What city is ZIP code 58323?: ZIP code 58323 is in Calvin, ND (Cavalier County).
What county is ZIP code 58323 in?: ZIP code 58323 is mostly in Cavalier County, North Dakota.
How many people live in ZIP code 58323?: About 72 people live in the 58323 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.