First three digits · Ohio
ZIP Codes Starting with
49 ZIP codes start with 451, sorted at the Cincinnati, OH (SCF 450) sectional center (USPS labeling list L005, effective October 1, 2026) in Ohio: 48 residential ZIP codes across 7 counties and 1 PO Box or single-organization code (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 451 mean?
The first digit, 4, is one of ten national areas (Indiana, Kentucky, Michigan and Ohio). The first three, 451, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 451 to the Cincinnati, OH (SCF 450) facility. The last two digits pick the delivery area. By residents, the largest town names among the 451 ZIP codes are Loveland, Batavia, Milford, Amelia, Hillsboro and Wilmington.
The same facility sorts 6 prefixes, 258 ZIP codes in all: 410, 450, 451, 452, 459, 470.
Where are the 451 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 451
| County | ||||||
|---|---|---|---|---|---|---|
| 45101 | Aberdeen | Brown County | 2,035 | 115 | $41k | $157k |
| 45102 | Amelia | Clermont County | 25,448 | 1,150 | $77k | $231k |
| 45103 | Batavia | Clermont County | 36,938 | 433 | $80k | $264k |
| 45105 | Bentonville | Adams County | 23 | 1,917 | – | – |
| 45106 | Bethel | Clermont County | 11,699 | 159 | $71k | $204k |
| 45107 | Blanchester | Clinton County | 9,190 | 114 | $72k | $221k |
| 45111 | Camp Dennison | Hamilton County | 265 | 234 | $101k | $235k |
| 45112 | Chilo | Clermont County | 11 | 35 | $52k | – |
| 45113 | Clarksville | Clinton County | 3,877 | 103 | $105k | $280k |
| 45114 | Cuba | Clinton County | PO Box or unique | – | – | – |
| 45115 | Decatur | Brown County | 151 | 33 | $50k | – |
| 45118 | Fayetteville | Brown County | 3,703 | 91 | $98k | $256k |
| 45119 | Feesburg | Brown County | 216 | 16,615 | $125k | – |
| 45120 | Felicity | Clermont County | 2,548 | 65 | $50k | $210k |
| 45121 | Georgetown | Brown County | 9,030 | 85 | $60k | $165k |
| 45122 | Goshen | Clermont County | 10,977 | 260 | $83k | $222k |
| 45123 | Greenfield | Highland County | 8,740 | 82 | $62k | $162k |
| 45130 | Hamersville | Brown County | 4,206 | 111 | $83k | $212k |
| 45131 | Higginsport | Brown County | 278 | 1,108 | $53k | $104k |
| 45132 | Highland | Highland County | 87 | 572 | $35k | $100k |
| 45133 | Hillsboro | Highland County | 23,443 | 75 | $62k | $173k |
| 45135 | Leesburg | Highland County | 5,291 | 71 | $80k | $210k |
| 45140 | Loveland | Clermont County | 57,211 | 1,298 | $115k | $360k |
| 45142 | Lynchburg | Highland County | 4,187 | 68 | $67k | $167k |
| 45144 | Manchester | Adams County | 4,119 | 58 | $42k | $136k |
| 45146 | Martinsville | Clinton County | 1,324 | 51 | $71k | $250k |
| 45147 | Miamiville | Clermont County | 57 | 284 | – | – |
| 45148 | Midland | Clinton County | 1,592 | 66 | $78k | $180k |
| 45150 | Milford | Clermont County | 33,527 | 1,039 | $94k | $289k |
| 45152 | Morrow | Warren County | 14,850 | 305 | $123k | $352k |
| 45153 | Moscow | Clermont County | 2,218 | 78 | $57k | $226k |
| 45154 | Mount Orab | Brown County | 8,969 | 137 | $74k | $234k |
| 45155 | Mowrystown | Highland County | 510 | 1,058 | $73k | $93k |
| 45156 | Neville | Clermont County | 52 | 452 | $64k | $77k |
| 45157 | New Richmond | Clermont County | 9,415 | 229 | $100k | $248k |
| 45158 | Newtonsville | Clermont County | 787 | 301 | $81k | $194k |
| 45159 | New Vienna | Clinton County | 3,588 | 66 | $83k | $169k |
| 45160 | Owensville | Clermont County | 507 | 1,641 | – | $156k |
| 45162 | Pleasant Plain | Warren County | 2,754 | 115 | $85k | $217k |
| 45164 | Port William | Clinton County | 175 | 1,012 | $49k | $97k |
| 45166 | Reesville | Clinton County | 60 | 81 | – | – |
| 45167 | Ripley | Brown County | 3,285 | 53 | $69k | $167k |
| 45168 | Russellville | Brown County | 1,667 | 60 | $74k | $173k |
| 45169 | Sabina | Clinton County | 4,050 | 43 | $52k | $152k |
| 45171 | Sardinia | Brown County | 5,752 | 71 | $74k | $183k |
| 45172 | Sinking Spring | Highland County | 308 | 698 | $108k | $149k |
| 45174 | Terrace Park | Hamilton County | 2,321 | 1,878 | $194k | $604k |
| 45176 | Williamsburg | Clermont County | 10,072 | 190 | $68k | $223k |
| 45177 | Wilmington | Clinton County | 22,924 | 135 | $74k | $226k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.