Colfax, WA 99111 ZIP Code Profile

Related Place Profiles:
Colfax, WA | Diamond, WA

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ZIP Code 99111: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Colfax, WA 99111

Acceptable Alternative
Diamond, WA 99111

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 234
  • Single Family Addresses: 1,549
  • Multi-Family Addresses: 151
  • County: Whitman County
  • Centroid: Latitude 46.879, Longitude -117.357
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood 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 certain data.


99111 ZIP Code Map

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Colfax, WA 99111 Data & Demographics (As of July 1, 2017)


Total Population 4,265
Daytime Population: Workers 3,520
Daytime Population: Residents 2,424
Total Daytime Population (TDP) 5,944
Ratio TDP/Total Population1 1.39
Population in Households 4,189
Population in Familes 3,313
Population in Group Qrtrs 76
Population Density2 15
Diversity Index3 17


Median Household Income $52,670
Average Household Income $68,149
Per Capita Income $29,991


Total Housing Units 2,053 (100%)
Owner Occupied HU 1,235 (60.2%)
Renter Occupied HU 622 (30.3%)
Vacant Housing Units 196 ( 9.5%)
Median Home Value $155,395
Average Home Value $190,304


Total Households 1,857
Average Household Size 2.26
Family Households 1,157
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 0.55% 0.82%
Households 0.63% 0.85%
Families 0.6% 0.83%
Median Household Income   3.98%
Per Capita Income   3.75%

Colfax, WA 99111 - Peer Comparisons by Rank and Percentile

The table below compares 99111 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 # 303 48th
Population Density # 432 26th
Diversity Index # 536 9th
Median Household Income # 332 43rd
Per Capita Income # 257 56th

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

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