Saint John, WA 99171 ZIP Code Profile

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Saint John, WA

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ZIP Code 99171: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Saint John, WA 99171

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 52
  • Single Family Addresses: 296
  • Multi-Family Addresses: 16
  • County: Whitman County
  • Centroid: Latitude 47.092, Longitude -117.584
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood Data

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99171 ZIP Code Map

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Saint John, WA 99171 Data & Demographics (As of July 1, 2017)


Total Population 943
Daytime Population: Workers 349
Daytime Population: Residents 581
Total Daytime Population (TDP) 930
Ratio TDP/Total Population1 0.99
Population in Households 943
Population in Familes 731
Population in Group Qrtrs 0
Population Density2 4
Diversity Index3 18


Median Household Income $42,391
Average Household Income $55,773
Per Capita Income $26,023


Total Housing Units 515 (100%)
Owner Occupied HU 320 (62.1%)
Renter Occupied HU 120 (23.3%)
Vacant Housing Units 75 (14.6%)
Median Home Value $111,000
Average Home Value $136,406


Total Households 440
Average Household Size 2.14
Family Households 262
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 0.6% 0.85%
Households 0.64% 0.85%
Families 0.59% 0.83%
Median Household Income   3.06%
Per Capita Income   3.9%

Saint John, WA 99171 - Peer Comparisons by Rank and Percentile

The table below compares 99171 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 # 430 27th
Population Density # 513 13th
Diversity Index # 531 9th
Median Household Income # 487 17th
Per Capita Income # 374 36th

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

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