What city is 98823 in?

98823 is a Ephrata, WA mailing address. By land area, 4% lies inside Ephrata; the rest is outside any Census-defined city or community.

What is the population of 98823?

About 12,188 people (±888), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 12,393.

What is the median household income in 98823?

$73,074 (±$6,863), compared with $98,141 for Washington as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 98823?

8 USPS carrier routes with 4,966 residential and 284 business mailboxes (5,254 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 98823?

The closest, measured center to center: 98851 (10.8 mi, Soap Lake), 98848 (15.2 mi, Quincy), 98845 (15.7 mi), 98853 (18.7 mi), 98850 (19.4 mi, Rock Island) and 98837 (20 mi, Moses Lake).

98823 ZIP Code, Ephrata, WA

Q: What county is 98823 in?

98823 is mostly in Grant County (73% of its land), with smaller parts in Douglas County.

98823 is a ZIP code in Ephrata, Washington — mostly in Grant County (73% of its land), with smaller parts in Douglas County. It covers 298 square miles of land. The closest ZIP codes are 98851, 98848 and 98845. 12,188 people live here in 4,379 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (67% own). Median household income is $73,074, below the Washington median of $98,141; 43% of households have children under 18.

Quick facts

Mailing city: Ephrata, WA
County: Grant County
Land area: 298 sq mi
Population: 12,188
Median household income: $73,074
Carrier routes: 8 (4,966 homes)

Key figures

Measure	Value
Residents	12,188
Households	4,379
Median household income	$73,074
Income per person	$32,629
Median age	32
Homeowners	67.3%
Median home value	$267,300
Median rent	$1,088
Bachelor's degree or higher	19.2%
Average commute (minutes)	21
Households with kids under 18	42.6%
Moved in the past year	9.7%
Below the poverty line	20.3%
Broadband internet	91.4%
Speak a non-English language at home	26.3%

Household income

% of households	Value
<$10K	2.8%
$10–15K	5.7%
$15–25K	7.7%
$25–35K	6.9%
$35–50K	12.6%
$50–75K	17.6%
$75–100K	13.8%
$100–150K	19.3%
$150–200K	5.1%
$200K+	8.7%

Age

% of all residents	Value
<10	13.9%
10–19	21.8%
20–24	4.7%
25–34	12.9%
35–44	12.0%
45–54	12.4%
55–64	9.1%
65–74	7.6%
75+	5.7%

Tenure

% of housing units	Value
Owned, with mortgage	41.8%
Owned outright	22.0%
Rented	29.9%
Vacant	6.3%

Type of building

% of housing units	Value
Detached house	67.7%
Townhome	1.5%
2–4 units	4.6%
5–19 units	0.3%
20+ units	8.1%
Mobile / other	17.9%

Businesses in 98823

264 business establishments with 2,310 employees (ZIP Codes Business Patterns 2023).

Construction: 41
Retail Trade: 37
Other Services (except Public Administration): 30
Accommodation and Food Services: 29
Health Care and Social Assistance: 20
Finance and Insurance: 18
Professional, Scientific, and Technical Services: 17
Transportation and Warehousing: 16

EDDM carrier routes

98823 has 8 USPS carrier routes with 4,966 residential and 284 business mailboxes. Open the EDDM route map.

Carrier routes in 98823

98823 has 8 USPS carrier routes (5 city (C), 3 rural (R)) with 4,966 residential and 284 business mailboxes. Routes range from 319 homes (C002) to 843 homes (C003); the median route has 674 homes. The Census counted 4,379 households in 98823 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	2
500–749	4
750–999	2
1,000–1,499	0
1,500+	0

Best routes in 98823 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C005 — USPS business mailboxes 115, 641 homes
Route C004 — USPS business mailboxes 96, 836 homes
Route C001 — USPS business mailboxes 21, 719 homes
Route R003 — USPS business mailboxes 17, 707 homes
Route C003 — USPS business mailboxes 15, 843 homes

Select these 5 routes on the route map

Every carrier route in 98823

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	719	21	$83,767	—	—	—
C002	City	319	0	$69,037	—	—	—
C003	City	843	15	$53,837	—	—	—
C004	City	836	96	$83,767	—	—	—
C005	City	641	115	$53,837	—	—	—
R001	Rural	362	10	$83,346	—	—	—
R002	Rural	539	10	$92,794	—	—	—
R003	Rural	707	17	$92,794	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 98823 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

98851 — Soap Lake city, WA (10.8 mi)
98848 — Quincy city, WA (15.2 mi)
98845 (15.7 mi)
98853 (18.7 mi)
98850 — Rock Island city, WA (19.4 mi)
98837 — Moses Lake city, WA (20 mi)
98824 — George city, WA (21.6 mi)

Areas that include 98823

Where it ranks

Mail every home in 98823

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 98823, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 98823 in?: 98823 is a Ephrata, WA mailing address. By land area, 4% lies inside Ephrata; the rest is outside any Census-defined city or community.
What county is 98823 in?: 98823 is mostly in Grant County (73% of its land), with smaller parts in Douglas County.
What is the population of 98823?: About 12,188 people (±888), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 12,393.
What is the median household income in 98823?: $73,074 (±$6,863), compared with $98,141 for Washington as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 98823?: 8 USPS carrier routes with 4,966 residential and 284 business mailboxes (5,254 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 98823?: The closest, measured center to center: 98851 (10.8 mi, Soap Lake), 98848 (15.2 mi, Quincy), 98845 (15.7 mi), 98853 (18.7 mi), 98850 (19.4 mi, Rock Island) and 98837 (20 mi, Moses Lake).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.