🇺🇸 United States ZIP Code

STANDARD

58577

Washburn

ZIP Code 58577 is a standard zip code serving Washburn, Washburn, North Dakota (ND), in McLean County, United States. It has an estimated population of 1,671 with a median household income of $65,365. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: North Dakota (ND)
County: McLean
City: Washburn
Timezone: America/Chicago

Coordinates

Latitude: 47.311400
Longitude: -101.011600

Geographic Details

Land Area: 188.06 mi²
Water Area: 4.92 mi²
Population Density: 9.0 people per mi² (10th percentile)
Bounding Box: 47.458439°N, 47.156631°S, -100.791671°E, -101.358224°W

With 1,671 residents spread across 188.06 square miles, this area has a population density of 9.0 people per square mile.

Demographics

1,671

Population

35th percentile

$65,365

Median Income

80th percentile

$145,500

Median Home Value

55th percentile

188.06 mi²

Land Area

The median household income in 58577 is $65,365, and the median home value is $145,500. This places the area in the top 25% nationally for household income.

Housing

900

Total Units

730

Occupied Units

81.1%

Occupancy Rate

Similar ZIP Codes in North Dakota

ZIP codes with similar median household income in North Dakota.

58579

Wilton

$57,059

58622

Belfield

$60,125

58366

Rolette

$56,429

58640

Killdeer

$72,386

58730

Crosby

$56,417

58545

Hazen

$69,797

58523

Beulah

$67,047

58530

Center

$63,696

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.