What city is 52302 in?

52302 is a Marion, IA mailing address. By land area, 23% lies inside Marion and 2% lies inside Robins; the rest is outside any Census-defined city or community.

What is the population of 52302?

About 42,706 people (±417), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 43,130.

What is the median household income in 52302?

$87,983 (±$6,485), compared with $75,059 for Iowa as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 52302?

27 USPS carrier routes with 19,285 residential and 791 business mailboxes (20,077 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 52302?

The closest, measured center to center: 52328 (5.4 mi, Robins), 52402 (5.8 mi, Cedar Rapids), 52336 (6.1 mi, Springville), 52233 (6.6 mi, Hiawatha), 52403 (6.9 mi, Cedar Rapids) and 52202 (7.6 mi, Alburnett).

52302 ZIP Code, Marion, IA

52302 is a ZIP code in Marion, Iowa in Linn County. It covers 74 square miles of land. The closest ZIP codes are 52328, 52402 and 52336. 42,706 people live here in 17,270 households, which puts it among the most populous 1% of Iowa ZIP codes. With about 574 people per square mile it is lightly settled, and most homes are owner-occupied (77%). Median household income is $87,983, above the Iowa median of $75,059.

Quick facts

Mailing city: Marion, IA
County: Linn County
Land area: 74 sq mi
Population: 42,706
Median household income: $87,983
Carrier routes: 27 (19,285 homes)

Key figures

Measure	Value
Residents	42,706
Households	17,270
Median household income	$87,983
Income per person	$44,026
Median age	40.9
Homeowners	77.4%
Median home value	$244,400
Median rent	$962
Bachelor's degree or higher	38.2%
Average commute (minutes)	19.1
Households with kids under 18	33.4%
Moved in the past year	10.7%
Below the poverty line	8.0%
Broadband internet	92.8%
Speak a non-English language at home	3.7%

Household income

% of households	Value
<$10K	2.0%
$10–15K	2.7%
$15–25K	7.1%
$25–35K	5.7%
$35–50K	10.3%
$50–75K	15.3%
$75–100K	12.8%
$100–150K	20.1%
$150–200K	12.4%
$200K+	11.6%

Age

% of all residents	Value
<10	14.1%
10–19	12.0%
20–24	3.6%
25–34	12.1%
35–44	15.4%
45–54	12.6%
55–64	11.7%
65–74	10.8%
75+	7.6%

Tenure

% of housing units	Value
Owned, with mortgage	49.7%
Owned outright	23.4%
Rented	20.8%
Vacant	6.1%

Type of building

% of housing units	Value
Detached house	66.7%
Townhome	8.6%
2–4 units	6.0%
5–19 units	9.6%
20+ units	5.0%
Mobile / other	4.1%

Businesses in 52302

804 business establishments with 10,010 employees (ZIP Codes Business Patterns 2023).

Construction: 119
Retail Trade: 100
Health Care and Social Assistance: 91
Other Services (except Public Administration): 83
Accommodation and Food Services: 77
Professional, Scientific, and Technical Services: 65
Finance and Insurance: 54
Administrative and Support and Waste Management and Remediation Services: 50

EDDM carrier routes

52302 has 27 USPS carrier routes with 19,285 residential and 791 business mailboxes. Open the EDDM route map.

Carrier routes in 52302

52302 has 27 USPS carrier routes (17 city (C), 10 rural (R)) with 19,285 residential and 791 business mailboxes. Routes range from 389 homes (C018) to 994 homes (R006); the median route has 715 homes. The Census counted 17,270 households in 52302 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	2
500–749	12
750–999	13
1,000–1,499	0
1,500+	0

Best routes in 52302 for…

Most businesses

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

Route C004 — USPS business mailboxes 153, 808 homes
Route C011 — USPS business mailboxes 103, 538 homes
Route C012 — USPS business mailboxes 93, 880 homes
Route R010 — USPS business mailboxes 75, 479 homes
Route C018 — USPS business mailboxes 62, 389 homes

Select these 5 routes on the route map

Every carrier route in 52302

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C003	City	571	19	$61,623	—	—	—
C004	City	808	153	$50,000	—	—	—
C005	City	642	0	$100,979	—	—	—
C006	City	515	57	$92,804	—	—	—
C007	City	521	20	$117,921	—	—	—
C008	City	595	5	$92,804	—	—	—
C009	City	981	4	$96,353	—	—	—
C010	City	786	2	$65,692	—	—	—
C011	City	538	103	$28,059	—	—	—
C012	City	880	93	$28,059	—	—	—
C014	City	606	3	$100,979	—	—	—
C015	City	824	14	$137,509	—	—	—
C016	City	715	28	$68,160	—	—	—
C017	City	755	0	$100,979	—	—	—
C018	City	389	62	$62,131	—	—	—
C019	City	662	1	$172,227	—	—	—
C021	City	525	37	$62,131	—	—	—
R001	Rural	870	17	$88,858	—	—	—
R002	Rural	833	15	$65,692	—	—	—
R003	Rural	793	32	$102,827	—	—	—
R004	Rural	594	21	$137,509	—	—	—
R005	Rural	666	2	$136,693	—	—	—
R006	Rural	994	4	$96,353	—	—	—
R007	Rural	898	0	$100,979	—	—	—
R008	Rural	896	4	$141,856	—	—	—
R009	Rural	949	20	$91,443	—	—	—
R010	Rural	479	75	$45,139	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 52302 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

52328 — Robins city, IA (5.4 mi)
52402 — Cedar Rapids city, IA (5.8 mi)
52336 — Springville city, IA (6.1 mi)
52233 — Hiawatha city, IA (6.6 mi)
52403 — Cedar Rapids city, IA (6.9 mi)
52202 — Alburnett city, IA (7.6 mi)
52401 — Cedar Rapids city, IA (8 mi)
52411 — Cedar Rapids city, IA (8.7 mi)

Areas that include 52302

Mail every home in 52302

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) 52302, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 52302 in?: 52302 is a Marion, IA mailing address. By land area, 23% lies inside Marion and 2% lies inside Robins; the rest is outside any Census-defined city or community.
What county is 52302 in?: 52302 is in Linn County.
What is the population of 52302?: About 42,706 people (±417), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 43,130.
What is the median household income in 52302?: $87,983 (±$6,485), compared with $75,059 for Iowa as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 52302?: 27 USPS carrier routes with 19,285 residential and 791 business mailboxes (20,077 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 52302?: The closest, measured center to center: 52328 (5.4 mi, Robins), 52402 (5.8 mi, Cedar Rapids), 52336 (6.1 mi, Springville), 52233 (6.6 mi, Hiawatha), 52403 (6.9 mi, Cedar Rapids) and 52202 (7.6 mi, Alburnett).

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