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County ZIP codes · North Dakota · FIPS 38097

Traill County, ND ZIP Codes

Traill County, North Dakota has 13 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 9 of the residential ones lie mainly in Traill County and 4 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $60,395 in 58257 (Mayville) to $86,484 in 58045 (Hillsboro) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Traill County?

58009 · Blanchard: –58016 · Clifford: $109k58035 · Galesburg: $132k58038 · Grandin: $113k58045 · Hillsboro: $87k58048 · Hunter: $100k58218 · Buxton: $92k58219 · Caledonia: $82k58223 · Cummings: $97k58240 · Hatton: $86k58257 · Mayville: $60k58274 · Portland: $105k58275 · Reynolds: $105k58045582405827558218580485825758274580385822358035580165800958009 · Blanchard: –58016 · Clifford: $109k58035 · Galesburg: $132k58038 · Grandin: $113k58045 · Hillsboro: $87k58048 · Hunter: $100k58218 · Buxton: $92k58219 · Caledonia: $82k58223 · Cummings: $97k58240 · Hatton: $86k58257 · Mayville: $60k58274 · Portland: $105k58275 · Reynolds: $105k58045582405827558218580485825758274580385822358035580165800958009 · Blanchard: –58016 · Clifford: $109k58035 · Galesburg: $132k58038 · Grandin: $113k58045 · Hillsboro: $87k58048 · Hunter: $100k58218 · Buxton: $92k58219 · Caledonia: $82k58223 · Cummings: $97k58240 · Hatton: $86k58257 · Mayville: $60k58274 · Portland: $105k58275 · Reynolds: $105k580455824058275582185804858257582745803858223580355801658009
The residential ZIP codes of Traill County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 13 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 13 residential ZIP codes in Traill County

9 ZIP codes lie mainly in Traill County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Traill County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
58045 Hillsboro 2,239 11 $87k $212k 100%
58257 Mayville 2,180 18 $60k $196k 100%
58218 Buxton 873 7 $92k $268k 100%
58035 Galesburg 212 2 $132k $289k 42%
58038 Grandin 179 2 $113k $210k 60%
58016 Clifford 178 3 $109k $137k 55%
58219 Caledonia 175 30 $82k $192k 100%
58223 Cummings 172 2 $97k $342k 100%
58009 Blanchard 48 1 – – 100%

Partly in Traill County

Residential ZIP codes mainly in another county that reach at least 1% into Traill County, by their share here
In this county
58274 Portland 930 7 $105k $203k 46%
58240 Hatton 991 7 $86k $169k 33%
58275 Reynolds 713 6 $105k $214k 30%
58048 Hunter 505 4 $100k $175k 24%

Download the 13 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

7 ZIP codes of Traill County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Traill County and in the neighboring counties
ZIPIn TraillElsewhere
5824033%Steele County 47%; Grand Forks County 19%
5827446%Steele County 54%
5827530%Grand Forks County 70%
5804824%Cass County 76%
5803542%Cass County 34%; Steele County 24%
5803860%Cass County 40%
5801655%Steele County 45%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Traill County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Traill County's ZIP codes use 2 prefixes: 580 and 582.

Three-digit prefixes of Traill County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Traill County's
PrefixSectional centerHereAll codes
580 Fargo, ND (SCF 580) 6 60
582 Grand Forks, ND (SCF 582) 7 61

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.