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Zip Code 58011 — Buffalo, ND

ZIP Code 58011 is associated with Buffalo, ND, in Cass County. The listed population estimate is 449; estimated density is 1.6 people per square mile. Among records with population estimates, it ranks #18 of 25 in Cass County and #182 of 387 in ND.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (46.927110, -97.544650)

Data MetricLocal Statistic
Postal / Zip Code58011
Primary CityBuffalo
State / ProvinceND
CountyCass
Total Population449
Population Density1.6 people/sq mi
TimezoneAmerica/Chicago

How 58011 Compares

MetricZIP 58011Cass County recordsND records
Population estimate449193,959 (sum)784,123 (sum)
Population Density1.6 /sq mi----
County population rank#18 of 25----
State population rank#182 of 387----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

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Nearby ZIP Codes in ND

ZIP CodeCityDistancePopulation estimate
ZIP 58071Tower City6.6 mi486
ZIP 58002Absaraka7.3 mi17
ZIP 58007Ayr7.9 mi81
ZIP 58079Wheatland10.1 mi504
ZIP 58063Oriska12.6 mi365

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →