What city is 83854 in?

83854 is a Post Falls, ID mailing address. By land area, 20% lies inside Post Falls and 1% lies inside Hauser; the rest is outside any Census-defined city or community.

What is the population of 83854?

About 54,851 people (±1,180), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 49,040.

What is the median household income in 83854?

$82,742 (±$7,241), compared with $77,800 for Idaho as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 83854?

29 USPS carrier routes with 23,719 residential and 1,316 business mailboxes (25,036 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 83854?

The closest, measured center to center: 99025 (6.6 mi, Otis Orchards-East Farms), 99027 (7.1 mi, Otis Orchards-East Farms), 99019 (7.7 mi, Liberty Lake), 83815 (8.7 mi, Coeur d'Alene), 83858 (9.5 mi, Rathdrum) and 99016 (11.2 mi, Spokane Valley).

83854 ZIP Code, Post Falls, ID

83854 is a ZIP code in Post Falls, Idaho in Kootenai County. It covers 78 square miles of land. The closest ZIP codes are 99025, 99027 and 99019. 54,851 people live here in 20,056 households, more than in 9 of every 10 Idaho ZIP codes. With about 707 people per square mile it is lightly settled, and owners and renters are mixed (68% own). Median household income is $82,742, close to the Idaho median of $77,800.

Quick facts

Mailing city: Post Falls, ID
County: Kootenai County
Land area: 78 sq mi
Population: 54,851
Median household income: $82,742
Carrier routes: 29 (23,719 homes)

Key figures

Measure	Value
Residents	54,851
Households	20,056
Median household income	$82,742
Income per person	$35,865
Median age	36.9
Homeowners	67.9%
Median home value	$489,800
Median rent	$1,495
Bachelor's degree or higher	25.3%
Average commute (minutes)	23.8
Households with kids under 18	33.1%
Moved in the past year	11.4%
Below the poverty line	11.2%
Broadband internet	89.7%
Speak a non-English language at home	3.1%

Household income

% of households	Value
<$10K	3.4%
$10–15K	2.2%
$15–25K	8.1%
$25–35K	5.7%
$35–50K	9.1%
$50–75K	17.8%
$75–100K	13.6%
$100–150K	23.7%
$150–200K	10.1%
$200K+	6.4%

Age

% of all residents	Value
<10	13.4%
10–19	14.2%
20–24	5.9%
25–34	14.5%
35–44	13.9%
45–54	10.8%
55–64	11.2%
65–74	9.6%
75+	6.4%

Tenure

% of housing units	Value
Owned, with mortgage	45.8%
Owned outright	18.8%
Rented	30.2%
Vacant	5.2%

Type of building

% of housing units	Value
Detached house	70.3%
Townhome	1.5%
2–4 units	5.2%
5–19 units	9.2%
20+ units	5.4%
Mobile / other	8.5%

Businesses in 83854

1,485 business establishments with 15,354 employees (ZIP Codes Business Patterns 2023).

Construction: 303
Health Care and Social Assistance: 160
Retail Trade: 158
Professional, Scientific, and Technical Services: 148
Other Services (except Public Administration): 114
Accommodation and Food Services: 100
Administrative and Support and Waste Management and Remediation Services: 97
Real Estate and Rental and Leasing: 93

EDDM carrier routes

83854 has 29 USPS carrier routes with 23,719 residential and 1,316 business mailboxes. Open the EDDM route map.

Carrier routes in 83854

83854 has 29 USPS carrier routes (29 rural (R)) with 23,719 residential and 1,316 business mailboxes. Routes range from 205 homes (R030) to 1,084 homes (R009); the median route has 845 homes. The Census counted 20,056 households in 83854 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	0
500–749	6
750–999	18
1,000–1,499	4
1,500+	0

Best routes in 83854 for…

Most businesses

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

Route R010 — USPS business mailboxes 179, 583 homes
Route R008 — USPS business mailboxes 166, 1,003 homes
Route R006 — USPS business mailboxes 139, 821 homes
Route R017 — USPS business mailboxes 125, 881 homes
Route R016 — USPS business mailboxes 121, 792 homes

Select these 5 routes on the route map

Every carrier route in 83854

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	691	7	$57,253	—	—	—
R002	Rural	647	8	$95,647	—	—	—
R003	Rural	875	43	$73,403	—	—	—
R004	Rural	853	5	$89,473	—	—	—
R005	Rural	697	87	$58,508	—	—	—
R006	Rural	821	139	$57,253	—	—	—
R007	Rural	765	71	$67,541	—	—	—
R008	Rural	1,003	166	$52,768	—	—	—
R009	Rural	1,084	53	$72,256	—	—	—
R010	Rural	583	179	$57,253	—	—	—
R011	Rural	871	35	$47,500	—	—	—
R012	Rural	893	0	$59,820	—	—	—
R013	Rural	803	3	$80,706	—	—	—
R014	Rural	845	22	$78,238	—	—	—
R015	Rural	891	0	$105,269	—	—	—
R016	Rural	792	121	$59,820	—	—	—
R017	Rural	881	125	$56,829	—	—	—
R018	Rural	910	12	$56,829	—	—	—
R019	Rural	806	49	$57,253	—	—	—
R020	Rural	1,037	2	$67,541	—	—	—
R021	Rural	735	7	$105,269	—	—	—
R023	Rural	798	0	$105,269	—	—	—
R024	Rural	1,014	2	$84,834	—	—	—
R025	Rural	643	55	$78,238	—	—	—
R026	Rural	761	7	$59,820	—	—	—
R027	Rural	933	11	$77,108	—	—	—
R028	Rural	968	7	$115,603	—	—	—
R029	Rural	914	82	$54,426	—	—	—
R030	Rural	205	18	$78,238	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 83854 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

99025 — Otis Orchards-East Farms CDP, WA (6.6 mi)
99027 — Otis Orchards-East Farms CDP, WA (7.1 mi)
99019 — Liberty Lake city, WA (7.7 mi)
83815 — Coeur d'Alene city, ID (8.7 mi)
83858 — Rathdrum city, ID (9.5 mi)
99016 — Spokane Valley city, WA (11.2 mi)
99216 — Spokane Valley city, WA (11.5 mi)
99037 — Spokane Valley city, WA (12.1 mi)

Areas that include 83854

Post Falls, ID ZIP codes — 1 ZIP code
Hauser, ID ZIP codes — 1 ZIP code
State Line, ID ZIP codes — 1 ZIP code
Kootenai County ZIP codes — 11 ZIP codes
Idaho ZIP code data

Where it ranks

Mail every home in 83854

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) 83854, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 83854 in?: 83854 is a Post Falls, ID mailing address. By land area, 20% lies inside Post Falls and 1% lies inside Hauser; the rest is outside any Census-defined city or community.
What county is 83854 in?: 83854 is in Kootenai County.
What is the population of 83854?: About 54,851 people (±1,180), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 49,040.
What is the median household income in 83854?: $82,742 (±$7,241), compared with $77,800 for Idaho as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 83854?: 29 USPS carrier routes with 23,719 residential and 1,316 business mailboxes (25,036 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 83854?: The closest, measured center to center: 99025 (6.6 mi, Otis Orchards-East Farms), 99027 (7.1 mi, Otis Orchards-East Farms), 99019 (7.7 mi, Liberty Lake), 83815 (8.7 mi, Coeur d'Alene), 83858 (9.5 mi, Rathdrum) and 99016 (11.2 mi, Spokane Valley).

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