What city is 99204 in?

99204 is a Spokane, WA mailing address. By land area, 100% lies inside Spokane.

What is the population of 99204?

About 7,643 people (±757), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 7,000.

What is the median household income in 99204?

$58,277 (±$7,335), 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 99204?

7 USPS carrier routes with 4,089 residential and 307 business mailboxes (4,396 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 99204?

The closest, measured center to center: 99201 (1.2 mi, Spokane), 99203 (1.6 mi, Spokane), 99258 (1.7 mi, Spokane), 99202 (2.3 mi, Spokane), 99207 (3.4 mi, Spokane) and 99205 (3.5 mi, Spokane).

99204 ZIP Code, Spokane, WA

99204 is a ZIP code in Spokane, Washington in Spokane County. It covers 1.0 square miles of land. The closest ZIP codes are 99201, 99203 and 99258. 7,643 people live here in 4,050 households. At about 7,493 people per square mile it is built up to city-neighborhood density, and most households rent (30% own). Median household income is $58,277, well below the Washington median of $98,141; 25% of residents moved in during the past year.

Quick facts

Mailing city: Spokane, WA
County: Spokane County
Land area: 1.0 sq mi
Population: 7,643
Median household income: $58,277
Carrier routes: 7 (4,089 homes)

Key figures

Measure	Value
Residents	7,643
Households	4,050
Median household income	$58,277
Income per person	$44,588
Median age	33.6
Homeowners	30.1%
Median home value	$397,700
Median rent	$1,184
Bachelor's degree or higher	41.0%
Average commute (minutes)	17
Households with kids under 18	16.6%
Moved in the past year	25.4%
Below the poverty line	17.1%
Broadband internet	93.9%
Speak a non-English language at home	10.0%

Household income

% of households	Value
<$10K	7.1%
$10–15K	5.2%
$15–25K	4.8%
$25–35K	7.1%
$35–50K	19.4%
$50–75K	21.8%
$75–100K	10.8%
$100–150K	10.2%
$150–200K	6.8%
$200K+	6.7%

Age

% of all residents	Value
<10	8.6%
10–19	10.5%
20–24	10.0%
25–34	23.3%
35–44	13.1%
45–54	11.2%
55–64	13.2%
65–74	6.6%
75+	3.5%

Tenure

% of housing units	Value
Owned, with mortgage	17.2%
Owned outright	10.7%
Rented	64.7%
Vacant	7.5%

Type of building

% of housing units	Value
Detached house	25.8%
Townhome	1.8%
2–4 units	15.1%
5–19 units	33.0%
20+ units	24.0%
Mobile / other	0.2%

Businesses in 99204

265 business establishments with 8,002 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 112
Professional, Scientific, and Technical Services: 25
Other Services (except Public Administration): 24
Real Estate and Rental and Leasing: 23
Accommodation and Food Services: 16
Retail Trade: 15
Finance and Insurance: 13
Construction: 8

EDDM carrier routes

99204 has 7 USPS carrier routes with 4,089 residential and 307 business mailboxes. Open the EDDM route map.

Carrier routes in 99204

99204 has 7 USPS carrier routes (7 city (C)) with 4,089 residential and 307 business mailboxes. Routes range from 203 homes (C012) to 873 homes (C008); the median route has 621 homes. The Census counted 4,050 households in 99204 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 99204 for…

Most businesses

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

Route C011 — USPS business mailboxes 95, 593 homes
Route C010 — USPS business mailboxes 83, 684 homes
Route C012 — USPS business mailboxes 75, 203 homes
Route C005 — USPS business mailboxes 24, 621 homes
Route C008 — USPS business mailboxes 22, 873 homes

Select these 5 routes on the route map

Every carrier route in 99204

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C004	City	652	7	$58,786	—	—	—
C005	City	621	24	$39,190	—	—	—
C006	City	463	1	$57,450	—	—	—
C008	City	873	22	$39,190	—	—	—
C010	City	684	83	$39,190	—	—	—
C011	City	593	95	$43,846	—	—	—
C012	City	203	75	$39,321	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 99204 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

99201 — Spokane city, WA (1.2 mi)
99203 — Spokane city, WA (1.6 mi)
99258 — Spokane city, WA (1.7 mi)
99202 — Spokane city, WA (2.3 mi)
99207 — Spokane city, WA (3.4 mi)
99205 — Spokane city, WA (3.5 mi)
99224 — Spokane city, WA (5 mi)
99212 — Spokane Valley city, WA (5.7 mi)

Areas that include 99204

Where it ranks

Mail every home in 99204

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) 99204, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 99204 in?: 99204 is a Spokane, WA mailing address. By land area, 100% lies inside Spokane.
What county is 99204 in?: 99204 is in Spokane County.
What is the population of 99204?: About 7,643 people (±757), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 7,000.
What is the median household income in 99204?: $58,277 (±$7,335), 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 99204?: 7 USPS carrier routes with 4,089 residential and 307 business mailboxes (4,396 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 99204?: The closest, measured center to center: 99201 (1.2 mi, Spokane), 99203 (1.6 mi, Spokane), 99258 (1.7 mi, Spokane), 99202 (2.3 mi, Spokane), 99207 (3.4 mi, Spokane) and 99205 (3.5 mi, Spokane).

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