Residential delivery area · Washington
ZIP Code 98823: Ephrata, WA
ZIP code 98823 uses the postal name Ephrata, Washington and lies mostly in Grant County (73% of its land) with the rest in Douglas County (Census 2020 ZIP-county file). About 12,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $73,074 (Census Bureau, ACS 2020-2024). By Census place, 4% of its land lies in Ephrata; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Ephrata · its only residential ZIP
- County
- Grant County (73%); Douglas County (27%)
- Census places
- Ephrata
- Micro area
- Moses Lake, WA
- House district
- WA-4 119th Congress
- State
- Washington
- Time zone
- Pacific
- Land area
- 298.2 sq mi · 41 people per sq mi
Where is ZIP code 98823?
98823 centers on 47.338°, -119.635° and covers 298.2 square miles of land. It borders 6 ZIP codes: 98851, 98848, 98845, 98837, 99115, 98858.
The map draws ZIP code areas only. For the streets inside 98823, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 98823 compare with the rest of Grant County?
| Measure | 98823 | In Grant County | In WA |
|---|---|---|---|
| People (ACS 2020-2024) | 12,188 | 4th of 19 | 219th of 605 |
| Median household income | $73k | 3rd of 8 | 283rd of 363 |
| Median home value | $267k | 5th of 9 | 362nd of 392 |
Its median household income is higher than in 52% of U.S. residential ZIP codes, and it is denser than 38% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 98823?
The 2020 Census counted 12,393 people in 98823; the ACS, which samples households over 2020-2024, estimates 12,188. Between the 2010 and 2020 censuses its population grew 12.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 12,188
- 2020 Census count
- 12,393+12.1% since 2010 (11,055)
- Households
- 4,379
- Median age
- 32.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 98823?
Of the 12,188 people the ACS estimates in 98823, 32.6% are under 18 and 13.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (60.7%), then Hispanic or Latino (34.3%).
- Under 1832.6%
- 18 to 6454.2%
- 65 and older13.2%
- White, not Hispanic60.7%
- Hispanic or Latino34.3%
- Other or two or more4.5%
- Black, not Hispanic0.4%
- Asian, not Hispanic0.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 98823 earn?
Median household income is $73,074 (ACS 2020-2024), the 3rd highest of the 8 ranked ZIP codes in Grant County. It is not measurably different from 2015-2019 ($77,049 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $73,074
- Income per person
- $32,629
- Below the poverty line
- 20.3%
- Unemployed (of the labor force)
- 4.5%
- Adults 25+ with a bachelor's degree
- 19.2%
- Adjusted gross income per tax return, 2022
- $71,1335,630 returns; wages 70% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 98823?
FHFA's house price index for 98823, built from repeat sales and appraisals of the same homes, rose 108% from 2015 to 2025 and rose 57% from 2020 to 2025, and moved +1.7% in 2025.
- Median home value (owners' estimate)
- $267,300
- Median gross rent
- $1,088
- Homes owned by their occupants
- 67.3%
- Housing units
- 4,683
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 98823?
264 business establishments had a location in this ZIP code in 2023, 16 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction41
- Retail trade37
- Other services (except public administration)30
- Accommodation and food services29
- Health care and social assistance20
- Finance and insurance18
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 98823?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 98851 | Soap Lake | 4,437 | $63k | 10.8 mi |
| 98848 | Quincy | 12,854 | $88k | 15.2 mi |
| 98845 | Palisades | 115 | $56k | 15.7 mi |
| 98837 | Moses Lake | 49,455 | $75k | 20.0 mi |
| 99115 | Coulee City | 1,369 | $63k | 26.1 mi |
| 98858 | Waterville | 1,783 | $79k | 26.3 mi |
| 98853 | Stratford | 6 | – | 18.7 mi (near) |
| 98850 | Rock Island | 2,032 | $83k | 19.4 mi (near) |
| 98824 | George | 147 | $44k | 21.6 mi (near) |
| 98828 | Malaga | 1,898 | $70k | 25.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.