What city is 45342 in?

45342 is a Miamisburg, OH mailing address. By land area, 35% lies inside Miamisburg, 5% lies inside Moraine, 5% lies inside West Carrollton and 2% lies inside Springboro; the rest is outside any Census-defined city or community.

What is the population of 45342?

About 36,152 people (±1,219), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,508.

What is the median household income in 45342?

$84,907 (±$6,927), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 45342?

24 USPS carrier routes with 17,043 residential and 920 business mailboxes (17,963 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 45342?

The closest, measured center to center: 45449 (3.1 mi, West Carrollton), 45439 (5.4 mi, Moraine), 45459 (5.9 mi, Centerville), 45066 (6.4 mi, Springboro), 45458 (6.6 mi, Centerville) and 45327 (6.8 mi, Germantown).

45342 ZIP Code, Miamisburg, OH

45342 is a ZIP code in Miamisburg, Ohio in Montgomery County. It covers 34 square miles of land. The closest ZIP codes are 45449, 45439 and 45459. 36,152 people live here in 15,157 households, more than in 9 of every 10 Ohio ZIP codes. At about 1,054 people per square mile it has suburban density, and owners and renters are mixed (65% own). Median household income is $84,907, above the Ohio median of $71,389.

Quick facts

Mailing city: Miamisburg, OH
County: Montgomery County
Land area: 34 sq mi
Population: 36,152
Median household income: $84,907
Carrier routes: 24 (17,043 homes)

Key figures

Measure	Value
Residents	36,152
Households	15,157
Median household income	$84,907
Income per person	$42,931
Median age	38.3
Homeowners	65.1%
Median home value	$230,300
Median rent	$1,312
Bachelor's degree or higher	33.3%
Average commute (minutes)	25.8
Households with kids under 18	29.8%
Moved in the past year	12.7%
Below the poverty line	9.0%
Broadband internet	92.7%
Speak a non-English language at home	7.8%

Household income

% of households	Value
<$10K	2.4%
$10–15K	2.2%
$15–25K	4.0%
$25–35K	4.6%
$35–50K	13.7%
$50–75K	16.6%
$75–100K	16.9%
$100–150K	19.7%
$150–200K	12.0%
$200K+	8.0%

Age

% of all residents	Value
<10	12.6%
10–19	11.7%
20–24	5.8%
25–34	16.1%
35–44	12.1%
45–54	12.4%
55–64	13.5%
65–74	9.9%
75+	5.9%

Tenure

% of housing units	Value
Owned, with mortgage	43.2%
Owned outright	19.6%
Rented	32.5%
Vacant	4.7%

Type of building

% of housing units	Value
Detached house	60.7%
Townhome	6.0%
2–4 units	6.1%
5–19 units	13.7%
20+ units	8.3%
Mobile / other	5.1%

Businesses in 45342

798 business establishments with 26,858 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 107
Professional, Scientific, and Technical Services: 85
Accommodation and Food Services: 84
Health Care and Social Assistance: 78
Other Services (except Public Administration): 67
Manufacturing: 59
Construction: 58
Finance and Insurance: 55

EDDM carrier routes

45342 has 24 USPS carrier routes with 17,043 residential and 920 business mailboxes. Open the EDDM route map.

Carrier routes in 45342

45342 has 24 USPS carrier routes (24 city (C)) with 17,043 residential and 920 business mailboxes. Routes range from 512 homes (C012) to 903 homes (C026); the median route has 692 homes. The Census counted 15,157 households in 45342 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	0
500–749	19
750–999	5
1,000–1,499	0
1,500+	0

Best routes in 45342 for…

Most businesses

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

Route C024 — USPS business mailboxes 160, 733 homes
Route C022 — USPS business mailboxes 124, 851 homes
Route C012 — USPS business mailboxes 115, 512 homes
Route C003 — USPS business mailboxes 72, 681 homes
Route C014 — USPS business mailboxes 68, 889 homes

Select these 5 routes on the route map

Every carrier route in 45342

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	669	36	$84,871	—	—	—
C002	City	624	39	$55,894	—	—	—
C003	City	681	72	$51,509	—	—	—
C004	City	598	40	$137,991	—	—	—
C006	City	626	9	$55,894	—	—	—
C007	City	684	7	$79,557	—	—	—
C009	City	704	48	$51,509	—	—	—
C010	City	615	16	$54,950	—	—	—
C011	City	713	9	$107,666	—	—	—
C012	City	512	115	$72,724	—	—	—
C013	City	679	0	$103,113	—	—	—
C014	City	889	68	$106,701	—	—	—
C015	City	699	54	$137,991	—	—	—
C016	City	584	8	$132,994	—	—	—
C017	City	669	5	$79,557	—	—	—
C018	City	748	6	$137,991	—	—	—
C019	City	640	31	$44,307	—	—	—
C020	City	856	4	$103,113	—	—	—
C021	City	890	2	$104,627	—	—	—
C022	City	851	124	$91,455	—	—	—
C023	City	743	2	$109,473	—	—	—
C024	City	733	160	$93,015	—	—	—
C026	City	903	58	$104,627	—	—	—
C036	City	733	7	$107,666	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 45342 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

45449 — West Carrollton city, OH (3.1 mi)
45439 — Moraine city, OH (5.4 mi)
45459 — Centerville city, OH (5.9 mi)
45066 — Springboro city, OH (6.4 mi)
45458 — Centerville city, OH (6.6 mi)
45327 — Germantown city, OH (6.8 mi)
45005 — Franklin city, OH (7 mi)
45429 — Kettering city, OH (7.1 mi)

Areas that include 45342

Miamisburg, OH ZIP codes — 1 ZIP code
West Carrollton, OH ZIP codes — 2 ZIP codes
Moraine, OH ZIP codes — 3 ZIP codes
Carlisle, OH ZIP codes — 2 ZIP codes
Montgomery County ZIP codes — 36 ZIP codes
Ohio ZIP code data

Where it ranks

Mail every home in 45342

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) 45342, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 45342 in?: 45342 is a Miamisburg, OH mailing address. By land area, 35% lies inside Miamisburg, 5% lies inside Moraine, 5% lies inside West Carrollton and 2% lies inside Springboro; the rest is outside any Census-defined city or community.
What county is 45342 in?: 45342 is in Montgomery County.
What is the population of 45342?: About 36,152 people (±1,219), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,508.
What is the median household income in 45342?: $84,907 (±$6,927), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 45342?: 24 USPS carrier routes with 17,043 residential and 920 business mailboxes (17,963 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 45342?: The closest, measured center to center: 45449 (3.1 mi, West Carrollton), 45439 (5.4 mi, Moraine), 45459 (5.9 mi, Centerville), 45066 (6.4 mi, Springboro), 45458 (6.6 mi, Centerville) and 45327 (6.8 mi, Germantown).

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