What city is 45204 in?

45204 is a Cincinnati, OH mailing address. By land area, 94% lies inside Cincinnati; the rest is outside any Census-defined city or community.

What is the population of 45204?

About 8,412 people (±1,000), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,818.

What is the median household income in 45204?

$31,236 (±$9,224), 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 45204?

4 USPS carrier routes with 2,743 residential and 137 business mailboxes (2,881 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 45204?

The closest, measured center to center: 45205 (1.5 mi, Cincinnati), 41016 (1.6 mi, Ludlow), 45238 (2.1 mi, Cincinnati), 45203 (2.6 mi, Cincinnati), 41011 (2.9 mi, Covington) and 45214 (2.9 mi, Cincinnati).

45204 ZIP Code, Cincinnati, OH

45204 is a ZIP code in Cincinnati, Ohio in Hamilton County. It covers 3.1 square miles of land. The closest ZIP codes are 45205, 41016 and 45238. 8,412 people live here in 3,014 households. At about 2,736 people per square mile it has suburban density, and owners and renters are mixed (44% own). Median household income is $31,236, well below the Ohio median of $71,389; the median age is 27.6, younger than most ZIP codes.

Quick facts

Mailing city: Cincinnati, OH
County: Hamilton County
Land area: 3.1 sq mi
Population: 8,412
Median household income: $31,236
Carrier routes: 4 (2,743 homes)

Key figures

Measure	Value
Residents	8,412
Households	3,014
Median household income	$31,236
Income per person	$19,053
Median age	27.6
Homeowners	43.7%
Median home value	$95,400
Median rent	$932
Bachelor's degree or higher	17.5%
Average commute (minutes)	25.5
Households with kids under 18	34.0%
Moved in the past year	13.9%
Below the poverty line	51.2%
Broadband internet	87.3%
Speak a non-English language at home	8.5%

Household income

% of households	Value
<$10K	19.0%
$10–15K	6.3%
$15–25K	20.5%
$25–35K	10.8%
$35–50K	10.1%
$50–75K	10.2%
$75–100K	8.2%
$100–150K	8.4%
$150–200K	3.5%
$200K+	3.1%

Age

% of all residents	Value
<10	19.8%
10–19	18.2%
20–24	9.6%
25–34	18.6%
35–44	9.6%
45–54	6.4%
55–64	8.9%
65–74	7.1%
75+	2.0%

Tenure

% of housing units	Value
Owned, with mortgage	15.1%
Owned outright	21.5%
Rented	46.6%
Vacant	16.8%

Type of building

% of housing units	Value
Detached house	32.6%
Townhome	6.8%
2–4 units	29.4%
5–19 units	10.8%
20+ units	19.3%
Mobile / other	1.2%

Businesses in 45204

94 business establishments with 2,477 employees (ZIP Codes Business Patterns 2023).

Manufacturing: 14
Health Care and Social Assistance: 11
Other Services (except Public Administration): 11
Transportation and Warehousing: 10
Professional, Scientific, and Technical Services: 9
Construction: 8
Retail Trade: 8
Wholesale Trade: 7

EDDM carrier routes

45204 has 4 USPS carrier routes with 2,743 residential and 137 business mailboxes. Open the EDDM route map.

Carrier routes in 45204

45204 has 4 USPS carrier routes (4 city (C)) with 2,743 residential and 137 business mailboxes. Routes range from 435 homes (C064) to 847 homes (C062); the median route has 731 homes. The Census counted 3,014 households in 45204 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 45204 for…

Most businesses

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

Route C061 — USPS business mailboxes 76, 776 homes
Route C064 — USPS business mailboxes 37, 435 homes
Route C066 — USPS business mailboxes 15, 685 homes
Route C062 — USPS business mailboxes 9, 847 homes

Select these 4 routes on the route map

Every carrier route in 45204

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C061	City	776	76	$46,405	—	—	—
C062	City	847	9	$38,409	—	—	—
C064	City	435	37	$38,166	—	—	—
C066	City	685	15	$53,093	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 45204 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

45205 — Cincinnati city, OH (1.5 mi)
41016 — Ludlow city, KY (1.6 mi)
45238 — Cincinnati city, OH (2.1 mi)
45203 — Cincinnati city, OH (2.6 mi)
41011 — Covington city, KY (2.9 mi)
45214 — Cincinnati city, OH (2.9 mi)
45225 — Cincinnati city, OH (3.9 mi)
45202 — Cincinnati city, OH (4.1 mi)

Areas that include 45204

Cincinnati, OH ZIP codes — 46 ZIP codes
Hamilton County ZIP codes — 55 ZIP codes
Ohio ZIP code data

Where it ranks

Mail every home in 45204

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.

Cincinnati EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 45204, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 45204 in?: 45204 is a Cincinnati, OH mailing address. By land area, 94% lies inside Cincinnati; the rest is outside any Census-defined city or community.
What county is 45204 in?: 45204 is in Hamilton County.
What is the population of 45204?: About 8,412 people (±1,000), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,818.
What is the median household income in 45204?: $31,236 (±$9,224), 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 45204?: 4 USPS carrier routes with 2,743 residential and 137 business mailboxes (2,881 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 45204?: The closest, measured center to center: 45205 (1.5 mi, Cincinnati), 41016 (1.6 mi, Ludlow), 45238 (2.1 mi, Cincinnati), 45203 (2.6 mi, Cincinnati), 41011 (2.9 mi, Covington) and 45214 (2.9 mi, Cincinnati).

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