Rosalia, WA 99170 ZIP Code Profile

Related Place Profiles:
Rosalia, WA

ZIP Code 99170: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rosalia, WA 99170

Acceptable Alternative
Plaza, WA 99170

  • ZIP Code Type: STANDARD
  • County: Whitman County
  • Centroid: Latitude 47.304, Longitude -117.357
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

ZIP Code 99170 has segments in 2 Counties (Spokane, Whitman).

  • Businesses Addresses: 64
  • PO Box Addresses: 92
  • Residential Addresses: 390
    • Multi-Family Addresses: 0
    • Single Family Addresses: 390

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

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


99170 ZIP Code Map

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Rosalia, WA 99170 Data & Demographics (As of July 1, 2017)


Total Population 1,108
Daytime Population: Workers 544
Daytime Population: Residents 724
Total Daytime Population (TDP) 1,268
Ratio TDP/Total Population1 1.14
Population in Households 1,107
Population in Familes 903
Population in Group Qrtrs 1
Population Density2 6
Diversity Index3 20


Median Household Income $41,852
Average Household Income $56,688
Per Capita Income $23,305


Total Housing Units 538 (100%)
Owner Occupied HU 346 (64.3%)
Renter Occupied HU 109 (20.3%)
Vacant Housing Units 83 (15.4%)
Median Home Value $130,952
Average Home Value $167,413


Total Households 455
Average Household Size 2.43
Family Households 310
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 0.82% 1.04%
Households 0.85% 1.03%
Families 0.83% 1.01%
Median Household Income   4.48%
Per Capita Income   3.06%

Rosalia, WA 99170 - Peer Comparisons by Rank and Percentile

The table below compares 99170 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 # 416 29th
Population Density # 492 16th
Diversity Index # 511 13th
Median Household Income # 496 15th
Per Capita Income # 459 22nd

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

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