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Fargo ZIP codes: US ZIP code list for Fargo, North Dakota (ND)

Quick answer

Fargo, North Dakota has 4 US ZIP codes, running 58078 to 58104 inside Cass County. Each carries the same 7.5% combined sales tax rate. ZIP boundaries are postal delivery routes, not tax boundaries — a code that crosses a city or district line can hold more than one rate, so destination-based sellers should validate by full street address.

ZIP codes
4Median covered metro: 12
Number span
2758078 to 58104
Sorting prefixes
580, 581USPS sectional centers
Sales tax
7.5%Same in every listed code

Fargo ZIP code footprint

How Fargo's ZIP footprint compares with national norms.

4 ZIP codes are listed for Fargo, covering a population of 133,188. They span 27 numbers, 58078 through 58104. The median covered metro on this site lists 12 codes; Fargo ranks 91 of 94 by count. Large metros carry more codes because USPS splits a delivery area once carrier volume outgrows one route cluster, not because the city is geographically bigger.

The codes split across 2 sectional center prefixes: 580, 581. Mail for Fargo is sorted at more than one plant, which is why the numbers are not contiguous. The range runs 58078 to 58104.

ZIP boundaries are carrier routes, not city limits. USPS redraws them when delivery volume shifts; North Dakota redraws tax and municipal lines on a different schedule entirely. A Fargo mailing address does not prove an address sits inside Fargo city limits, and a single code can straddle the boundary.

ZIP codes in Fargo

All within Cass County, North Dakota.

Source: North Dakota Office of State Tax Commissioner rate tables · rates as published for 2026

Why ZIP-based rate lookup is unreliable

USPS redraws ZIP codes when carrier routes change. Tax jurisdictions move with annexations, county lines and voter-approved districts. The two never line up. In North Dakota, local jurisdictions set their own increments, so remote sellers should validate the full delivery address against the North Dakota Office of State Tax Commissioner lookup at the time of sale.

Frequently asked questions

Common questions about this area.

How many ZIP codes does Fargo have?
4. They run from 58078 to 58104 across 2 sectional center prefixes (580, 581), spanning 27 numbers.
What is the first ZIP code in Fargo, ND?
58078 is the lowest-numbered code serving Fargo. Numbering runs roughly northeast to west nationally, so Fargo's 580 prefix reflects its position in the North Dakota sorting network, not its size.
Do all Fargo ZIP codes have the same sales tax rate?
Inside Fargo city limits, yes — 7.5% applies. A code that extends past the city line can carry a different rate on part of its territory. Validate by street address, not ZIP, when the sale is destination-based. Confirm current rates with your state revenue agency before filing.

Fargo sales tax breakdown and calculator

Other Fargo datasets on this site.

Statewide: North Dakota cities · North Dakota ZIP codes · North Dakota sales tax · North Dakota counties