Harmon is a community in Morton County, North Dakota, home to about 198 people across 1.6 square miles. It has no ZIP code of its own: it’s part of 58554.
Homes sold for a median of $165 per square foot in the three months ending August 2026, a seller’s market.
Mostly Mandan; part is in Harmon
Each card is that ZIP code’s whole market, including any part outside Harmon. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Harmon’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)393 miles away |
|---|---|
| Closer regional airport | Bismarck Municipal Airport (BIS)9 miles away |
| Nearest city of 250,000+ | Minneapolis, MN389 miles away |
| Nearest city of 1 million+ | Chicago, IL739 miles away |
Straight-line distances from the center of Harmon; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Harmon had 259 residents in the 2020 census, up 79% since 2010.
It’s the 178th largest of 402 towns in North Dakota by population.
Morton County grew from 10,277 residents in 1900 to 33,291 in 2020.
Morton County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 3°F. About 18.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Mandan Exp Stn, ND weather station (about a mile away).
10,964 jobs at 895 businesses in Morton County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
129 doctors and other health care providers list an office in Harmon.
Nearest hospitals
Providers with an office here
| Primary care doctors | 16 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 9 |
| Nurse practitioners and physician assistants | 20 |
| Mental health providers | 18 |
| Physical and occupational therapists | 37 |
| Optometrists | 12 |
| Chiropractors | 15 |
| Pharmacies | 8 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (7 nearby)
Grocery stores
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Mandan 1, Sweet Briar 17, Marmot Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Custer Elementary SchoolMandan | Pre-K–5 | 126 | Public | 1.3 mi |
| Lewis and Clark Elementary SchoolMandan | Pre-K–5 | 379 | Public | 0.7 mi |
| Mary Stark Elementary SchoolMandan | Pre-K–5 | 193 | Public | 0.8 mi |
| Red Trail Elementary SchoolMandan | Pre-K–5 | 438 | Public | 3.0 mi |
| Roosevelt Elementary SchoolMandan | Pre-K–5 | 284 | Public | 0.3 mi |
| Ft Lincoln Elementary SchoolMandan | K–5 | 455 | Public | 2.1 mi |
| Lakewood Elementary SchoolMandan | K–5 | 285 | Public | 3.7 mi |
| Mandan K-8 Elementary Virtual AcademyMandan | K–8 | 14 | Public | 0.4 mi |
| Sweet Briar SchoolMandan | K–8 | 28 | Public | 11.6 mi |
| Mandan Middle SchoolMandan | 6–8 | 1,003 | Public | 1.5 mi |
| Marmot School 6-12Mandan | 6–12 | 20 | Public | 0.9 mi |
| Brave Center AcademyMandan | 9–12 | 50 | Public | 1.1 mi |
| Mandan High SchoolMandan | 9–12 | 1,175 | Public | 1.1 mi |
| Mandan Virtual High SchoolMandan | 9–12 | 49 | Public | 0.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Christ the King Catholic Montessori SchoolMandan | Pre-K–6 | 133 | Roman Catholic | 0.1 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Mandan.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.