County ZIP codes · Ohio · FIPS 39061

Hamilton County, OH ZIP Codes

Hamilton County, Ohio has 80 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 56 residential and 24 for PO boxes or a single organization. 54 of the residential ones lie mainly in Hamilton County and 2 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $20,348 in 45225 (Cincinnati) to $193,750 in 45174 (Terrace Park) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

45225 · $20k45174 · $194k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $60,324 and $97,558.

They carry 12 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 56 residential ZIP codes in Hamilton County

54 ZIP codes lie mainly in Hamilton County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Hamilton County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
45238	Cincinnati	48,351	4,697	$66k	$184k	100%
45231	Cincinnati	40,463	2,738	$71k	$176k	100%
45211	Cincinnati	38,049	4,221	$54k	$170k	100%
45215	Cincinnati	30,586	2,550	$69k	$226k	100%
45239	Cincinnati	29,607	4,733	$60k	$171k	100%
45240	Cincinnati	29,600	3,057	$72k	$204k	100%
45244	Cincinnati	28,511	1,314	$109k	$382k	68%
45230	Cincinnati	27,501	2,001	$90k	$262k	100%
45236	Cincinnati	24,513	3,563	$84k	$231k	100%
45241	Cincinnati	23,955	1,370	$104k	$315k	80%
45247	Cincinnati	23,617	1,116	$95k	$288k	100%
45242	Cincinnati	22,623	1,670	$125k	$447k	100%
45248	Cincinnati	22,576	1,982	$85k	$217k	100%
45255	Cincinnati	22,313	1,724	$92k	$304k	68%
45224	Cincinnati	21,900	3,609	$57k	$204k	100%
45030	Harrison	21,640	539	$99k	$241k	100%
45212	Cincinnati	21,526	5,872	$72k	$258k	100%
45237	Cincinnati	20,903	3,441	$45k	$171k	100%
45251	Cincinnati	20,254	1,705	$75k	$185k	100%
45219	Cincinnati	20,012	12,610	$36k	$208k	100%
45227	Cincinnati	18,893	3,267	$72k	$299k	100%
45205	Cincinnati	18,651	6,666	$44k	$128k	100%
45208	Cincinnati	17,943	4,161	$138k	$547k	100%
45202	Cincinnati	17,869	6,708	$96k	$444k	100%
45243	Cincinnati	16,103	830	$171k	$627k	100%
45233	Cincinnati	15,981	1,476	$111k	$301k	100%
45002	Cleves	15,413	601	$81k	$311k	100%
45249	Cincinnati	14,490	2,130	$106k	$495k	92%
45223	Cincinnati	14,182	3,062	$49k	$210k	100%
45220	Cincinnati	14,109	4,877	$53k	$403k	100%
45229	Cincinnati	13,529	4,947	$32k	$286k	100%
45246	Cincinnati	13,527	1,434	$65k	$206k	77%
45213	Cincinnati	11,139	3,562	$76k	$286k	100%
45209	Cincinnati	10,570	4,665	$93k	$401k	100%
45206	Cincinnati	10,299	5,049	$63k	$272k	100%
45225	Cincinnati	9,583	3,274	$20k	$103k	100%
45216	Cincinnati	9,569	3,425	$44k	$155k	100%
45214	Cincinnati	8,630	3,217	$28k	$101k	100%
45204	Cincinnati	8,412	2,736	$31k	$95k	100%
45207	Cincinnati	6,983	5,878	$50k	$229k	100%
45217	Cincinnati	6,454	2,998	$62k	$171k	100%
45232	Cincinnati	6,363	1,574	$28k	$131k	100%
45226	Cincinnati	5,796	1,014	$98k	$408k	100%
45252	Cincinnati	4,684	414	$85k	$315k	100%
45052	North Bend	4,236	319	$101k	$305k	100%
45218	Cincinnati	3,836	2,917	$71k	$180k	100%
45203	Cincinnati	2,436	2,035	$22k	$357k	100%
45174	Terrace Park	2,321	1,878	$194k	$604k	100%
45001	Addyston	904	1,062	$50k	$106k	100%
45033	Hooven	377	1,193	$43k	$83k	100%
45051	Mount Saint Joseph	334	736	$67k	–	100%
45111	Camp Dennison	265	234	$101k	$235k	100%
45041	Miamitown	118	656	–	–	100%
45267	Cincinnati	2	45	–	–	100%

Partly in Hamilton County

Residential ZIP codes mainly in another county that reach at least 1% into Hamilton County, by their share here
						In this county
45140	Loveland	57,211	1,298	$115k	$360k	15%
45013	Hamilton	53,998	459	$74k	$232k	3%

Download the 80 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

7 ZIP codes of Hamilton County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Hamilton County and in the neighboring counties
ZIP	In Hamilton	Elsewhere
45140	15%	Clermont County53%; Warren County31%
45013	3%	Butler County97%
45244	68%	Clermont County32%
45241	80%	Butler County20%
45255	68%	Clermont County32%
45249	92%	Warren County8%
45246	77%	Butler County23%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Hamilton County without a residential area (GeoNames postal codes)
ZIP	Postal name
45201	Cincinnati
45221	Cincinnati
45222	Cincinnati
45234	Cincinnati
45235	Cincinnati
45250	Cincinnati
45253	Cincinnati
45254	Cincinnati
45258	Cincinnati
45262	Cincinnati
45263	Cincinnati
45264	Cincinnati
45268	Cincinnati
45269	Cincinnati
45270	Cincinnati
45271	Cincinnati
45273	Cincinnati
45274	Cincinnati
45277	Cincinnati
45280	Cincinnati
45296	Cincinnati
45298	Cincinnati
45299	Cincinnati
45999	Cincinnati

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Hamilton County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Hamilton County's ZIP codes use 4 prefixes: 450, 451, 452 and 459.

Three-digit prefixes of Hamilton County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Hamilton County's
Prefix	Sectional center	Here	All codes
450	Cincinnati, OH (SCF 450)	8	39
451	Cincinnati, OH (SCF 450)	3	49
452	Cincinnati, OH (SCF 450)	68	70
459	Cincinnati, OH (SCF 450)	1	1

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.

Where are the ZIP codes of Hamilton County?