Ephrata, WA 98823 ZIP Code Profile

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Ephrata, WA

ZIP Code 98823: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Ephrata, WA 98823

  • ZIP Code Type: STANDARD
  • County: Grant County
  • Centroid: Latitude 47.317, Longitude -119.548
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 479
  • PO Box Addresses: 680
  • Residential Addresses: 4,203
    • Multi-Family Addresses: 96
    • Single Family Addresses: 4,107

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

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98823 ZIP Code Map

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Ephrata, WA 98823 Data & Demographics (As of July 1, 2017)


Total Population 11,232
Daytime Population: Workers 5,488
Daytime Population: Residents 6,100
Total Daytime Population (TDP) 11,588
Ratio TDP/Total Population1 1.03
Population in Households 10,910
Population in Familes 9,127
Population in Group Qrtrs 322
Population Density2 58
Diversity Index3 55


Median Household Income $47,000
Average Household Income $57,847
Per Capita Income $21,351


Total Housing Units 4,409 (100%)
Owner Occupied HU 2,730 (61.9%)
Renter Occupied HU 1,316 (29.8%)
Vacant Housing Units 363 ( 8.2%)
Median Home Value $152,229
Average Home Value $184,799


Total Households 4,046
Average Household Size 2.7
Family Households 2,840
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 0.39% 0.47%
Households 0.34% 0.43%
Families 0.25% 0.36%
Median Household Income   3.13%
Per Capita Income   3.58%

Ephrata, WA 98823 - Peer Comparisons by Rank and Percentile

The table below compares 98823 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 # 222 62nd
Population Density # 355 40th
Diversity Index # 168 71st
Median Household Income # 421 28th
Per Capita Income # 514 12th

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

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