Northport, WA 99157 ZIP Code Profile

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Northport, WA

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ZIP Code 99157: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Northport, WA 99157

  • ZIP Code Type: STANDARD
  • County: Stevens County
  • Centroid: Latitude 48.925, Longitude -117.788
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 47
  • PO Box Addresses: 442
  • Residential Addresses: 136
    • Multi-Family Addresses: 0
    • Single Family Addresses: 136

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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99157 ZIP Code Map

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Northport, WA 99157 Data & Demographics (As of July 1, 2017)


Total Population 589
Daytime Population: Workers 241
Daytime Population: Residents 410
Total Daytime Population (TDP) 651
Ratio TDP/Total Population1 1.11
Population in Households 588
Population in Familes 445
Population in Group Qrtrs 1
Population Density2 7
Diversity Index3 26


Median Household Income $36,568
Average Household Income $49,065
Per Capita Income $22,578


Total Housing Units 367 (100%)
Owner Occupied HU 210 (57.2%)
Renter Occupied HU 61 (16.6%)
Vacant Housing Units 96 (26.2%)
Median Home Value $165,385
Average Home Value $239,048


Total Households 271
Average Household Size 2.17
Family Households 167
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.72% 0.6%
Households 0.79% 0.66%
Families 0.68% 0.71%
Median Household Income   0.92%
Per Capita Income   3.15%

Northport, WA 99157 - Peer Comparisons by Rank and Percentile

The table below compares 99157 to the other 585 ZIP Codes in Washington by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 465 21st
Population Density # 484 18th
Diversity Index # 416 29th
Median Household Income # 547 7th
Per Capita Income # 489 17th

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.

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