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County ZIP codes · North Dakota · FIPS 38061

Mountrail County, ND ZIP Codes

Mountrail County, North Dakota has 12 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Mountrail County and 5 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $58,110 in 58763 (New Town) to $116,616 in 58784 (Stanley) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Mountrail County?

58718 · Berthold: $83k58734 · Donnybrook: $76k58756 · Makoti: $77k58763 · New Town: $58k58769 · Palermo: $37k58770 · Parshall: $65k58771 · Plaza: $89k58773 · Powers Lake: $104k58776 · Ross: $83k58784 · Stanley: $117k58794 · White Earth: $98k58852 · Tioga: $81k58763587185878458771587705877358734588525876958756587765879458718 · Berthold: $83k58734 · Donnybrook: $76k58756 · Makoti: $77k58763 · New Town: $58k58769 · Palermo: $37k58770 · Parshall: $65k58771 · Plaza: $89k58773 · Powers Lake: $104k58776 · Ross: $83k58784 · Stanley: $117k58794 · White Earth: $98k58852 · Tioga: $81k587635871858784587715877058773587345885258769587565877658718 · Berthold: $83k58734 · Donnybrook: $76k58756 · Makoti: $77k58763 · New Town: $58k58769 · Palermo: $37k58770 · Parshall: $65k58771 · Plaza: $89k58773 · Powers Lake: $104k58776 · Ross: $83k58784 · Stanley: $117k58794 · White Earth: $98k58852 · Tioga: $81k5876358718587845877158770587735873458852587695875658776
The residential ZIP codes of Mountrail 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 12 postal town names.

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

All 12 residential ZIP codes in Mountrail County

7 ZIP codes lie mainly in Mountrail County; 5 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Mountrail County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
58763 New Town 4,426 8 $58k $227k 60%
58784 Stanley 2,756 8 $117k $259k 90%
58770 Parshall 1,369 5 $65k $170k 63%
58771 Plaza 585 2 $89k $170k 76%
58776 Ross 264 2 $83k – 100%
58769 Palermo 154 1 $37k – 100%
58794 White Earth 148 2 $98k $115k 100%

Partly in Mountrail County

Residential ZIP codes mainly in another county that reach at least 1% into Mountrail County, by their share here
In this county
58734 Donnybrook 202 1 $76k $147k 37%
58718 Berthold 886 2 $83k $231k 32%
58773 Powers Lake 1,036 3 $104k $263k 31%
58756 Makoti 165 1 $77k $100k 21%
58852 Tioga 2,087 7 $81k $209k 21%

Download the 12 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?

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

Share of each ZIP code's land in Mountrail County and in the neighboring counties
ZIPIn MountrailElsewhere
5876360%McKenzie County 40%
5878490%Burke County 10%
5885221%Williams County 79%
5877063%McLean County 37%
5877331%Burke County 69%
5871832%Ward County 65%; Renville County 3%
5877176%Ward County 20%; McLean County 3%
5873437%Ward County 42%; Renville County 22%
5875621%Ward County 75%; McLean County 4%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Mountrail County's ZIP codes use 2 prefixes: 587 and 588.

Three-digit prefixes of Mountrail 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 Mountrail County's
PrefixSectional centerHereAll codes
587 Bismarck, ND (SCF 585) 11 64
588 Bismarck, ND (SCF 585) 1 17

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