What city is 45014 in?

45014 is a Fairfield, OH mailing address. By land area, 86% lies inside Fairfield, 4% lies inside Ross and 2% lies inside Hamilton; the rest is outside any Census-defined city or community.

What is the population of 45014?

About 45,773 people (±511), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 46,169.

What is the median household income in 45014?

$75,661 (±$6,665), 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 45014?

29 USPS carrier routes with 19,387 residential and 1,582 business mailboxes (20,970 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 45014?

The closest, measured center to center: 45240 (3.1 mi, Forest Park), 45015 (3.4 mi, Hamilton), 45251 (4.3 mi, Northgate), 45218 (4.5 mi, Greenhills), 45246 (5.3 mi, Springdale) and 45231 (5.5 mi, New Burlington).

45014 ZIP Code, Fairfield, OH

45014 is a ZIP code in Fairfield, Ohio in Butler County. It covers 23 square miles of land. The closest ZIP codes are 45240, 45015 and 45251. 45,773 people live here in 18,888 households, more than in 9 of every 10 Ohio ZIP codes. At about 2,026 people per square mile it has suburban density, and owners and renters are mixed (63% own). Median household income is $75,661, close to the Ohio median of $71,389.

Quick facts

Mailing city: Fairfield, OH
County: Butler County
Land area: 23 sq mi
Population: 45,773
Median household income: $75,661
Carrier routes: 29 (19,387 homes)

Key figures

Measure	Value
Residents	45,773
Households	18,888
Median household income	$75,661
Income per person	$40,041
Median age	38
Homeowners	62.8%
Median home value	$232,400
Median rent	$1,235
Bachelor's degree or higher	30.2%
Average commute (minutes)	23.8
Households with kids under 18	27.8%
Moved in the past year	9.1%
Below the poverty line	8.8%
Broadband internet	93.4%
Speak a non-English language at home	17.6%

Household income

% of households	Value
<$10K	4.6%
$10–15K	1.7%
$15–25K	4.6%
$25–35K	9.9%
$35–50K	12.3%
$50–75K	16.6%
$75–100K	14.3%
$100–150K	19.1%
$150–200K	8.7%
$200K+	8.1%

Age

% of all residents	Value
<10	11.7%
10–19	12.2%
20–24	7.0%
25–34	15.3%
35–44	11.4%
45–54	12.1%
55–64	12.7%
65–74	10.2%
75+	7.4%

Tenure

% of housing units	Value
Owned, with mortgage	39.3%
Owned outright	20.3%
Rented	34.7%
Vacant	5.8%

Type of building

% of housing units	Value
Detached house	56.3%
Townhome	8.4%
2–4 units	7.9%
5–19 units	20.9%
20+ units	4.6%
Mobile / other	1.9%

Businesses in 45014

1,123 business establishments with 28,920 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 158
Health Care and Social Assistance: 147
Other Services (except Public Administration): 113
Accommodation and Food Services: 109
Construction: 87
Manufacturing: 77
Wholesale Trade: 77
Professional, Scientific, and Technical Services: 70

EDDM carrier routes

45014 has 29 USPS carrier routes with 19,387 residential and 1,582 business mailboxes. Open the EDDM route map.

Carrier routes in 45014

45014 has 29 USPS carrier routes (28 city (C), 1 highway contract (H)) with 19,387 residential and 1,582 business mailboxes. Routes range from 40 homes (C088) to 1,151 homes (C071); the median route has 722 homes. The Census counted 18,888 households in 45014 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	2
250–499	3
500–749	10
750–999	12
1,000–1,499	2
1,500+	0

Best routes in 45014 for…

Most businesses

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

Route C062 — USPS business mailboxes 325, 300 homes
Route C088 — USPS business mailboxes 207, 40 homes
Route C089 — USPS business mailboxes 176, 789 homes
Route C094 — USPS business mailboxes 131, 856 homes
Route C049 — USPS business mailboxes 112, 617 homes

Select these 5 routes on the route map

Every carrier route in 45014

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C049	City	617	112	$60,844	—	—	—
C050	City	771	0	$111,622	—	—	—
C053	City	1,136	16	$52,337	—	—	—
C055	City	620	12	$65,692	—	—	—
C057	City	722	8	$49,614	—	—	—
C058	City	517	104	$154,352	—	—	—
C062	City	300	325	$32,942	—	—	—
C065	City	793	46	$74,479	—	—	—
C066	City	624	62	$83,933	—	—	—
C070	City	788	1	$110,290	—	—	—
C071	City	1,151	16	$98,218	—	—	—
C073	City	772	103	$90,494	—	—	—
C074	City	888	2	$90,494	—	—	—
C075	City	767	31	$64,917	—	—	—
C076	City	886	19	$98,361	—	—	—
C077	City	752	4	$86,159	—	—	—
C087	City	630	1	$98,218	—	—	—
C088	City	40	207	$73,716	—	—	—
C089	City	789	176	$154,352	—	—	—
C090	City	528	14	$43,372	—	—	—
C091	City	787	98	$76,337	—	—	—
C092	City	703	6	$68,163	—	—	—
C093	City	553	0	$66,025	—	—	—
C094	City	856	131	$49,614	—	—	—
C095	City	480	60	$74,479	—	—	—
C096	City	809	10	$54,503	—	—	—
C097	City	453	9	$64,993	—	—	—
C099	City	526	9	$66,025	—	—	—
H001	Highway contract	129	0	$86,159	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 45014 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

45240 — Forest Park city, OH (3.1 mi)
45015 — Hamilton city, OH (3.4 mi)
45251 — Northgate CDP, OH (4.3 mi)
45218 — Greenhills village, OH (4.5 mi)
45246 — Springdale city, OH (5.3 mi)
45231 — New Burlington CDP, OH (5.5 mi)
45252 — Dunlap CDP, OH (5.6 mi)
45011 — Hamilton city, OH (7.6 mi)

Areas that include 45014

Where it ranks

No. 5 of 14: fastest population growth in Butler County

Mail every home in 45014

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) 45014, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 45014 in?: 45014 is a Fairfield, OH mailing address. By land area, 86% lies inside Fairfield, 4% lies inside Ross and 2% lies inside Hamilton; the rest is outside any Census-defined city or community.
What county is 45014 in?: 45014 is in Butler County.
What is the population of 45014?: About 45,773 people (±511), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 46,169.
What is the median household income in 45014?: $75,661 (±$6,665), 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 45014?: 29 USPS carrier routes with 19,387 residential and 1,582 business mailboxes (20,970 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 45014?: The closest, measured center to center: 45240 (3.1 mi, Forest Park), 45015 (3.4 mi, Hamilton), 45251 (4.3 mi, Northgate), 45218 (4.5 mi, Greenhills), 45246 (5.3 mi, Springdale) and 45231 (5.5 mi, New Burlington).

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