| ZIP Codes: | 64 ZIP Codes (41 Standard, 9 PO Box, 14 Unique) [See All] |
| Area Codes: | 220 / 380 / 614 / 740 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:19 PM |
| Population: | 1,367,698 [See All] |
| FIPS: | 39049 |
| CBSA: | Columbus, OH |
| Land Area: | 602 sq mi |
| Water Area: | 11 sq mi |
| Coordinates: | 39.9875, -82.9803 |
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1,367,698 residents live across 64 ZIPs covering 602 sq mi, served by 15 distinct USPS-recognized cities.
Population moved from 1,224,540 to 1,367,698 from 2014 to 2024 — a +11.7% change. 38 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 43054 (New Albany, $148,100 median) and poorest ZIP 43222 (Columbus, $32,321) are 15.6 miles apart — a 4.6× income gap across local geography.
Median home values vary 9.7× across this county — from $56,900 in 43217 (Columbus) to $551,200 in 43215 (Columbus).
Density varies 138× across the county — from 78 people/sq mi in 43137 (Lockbourne) to 10,849 in 43201 (Columbus).
Educational attainment ranges from 6.6% bachelor's+ in 43217 (Columbus) to 77.1% in 43212 (Columbus) — the breadth of educational profiles across the area.
Within Ohio, this is the #1 most populous of 88 counties and ranks #34 for median household income with the #4 fastest decade growth .
On the national stage, Franklin County is the #31 most populous US county .
Hosts 4 single-entity Unique ZIPs: 43194Shared Zip Code ; 43195Gap Inc Direct ; 43287Huntington National Bank ; and 43069Victorias Secret .
Weighted by population, the typical household earns about $79,312 across the county — reflecting what a typical resident sees, not a simple ZIP average.
42.2% of adults age 25+ hold a bachelor's degree or higher (387,961 of 919,675 reporting). The most-educated ZIPs cluster around Columbus.
41 Standard delivery, 9 PO Box only, 14 single-entity Unique ZIPs serve this county.
11 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
14 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
Median household income spans 4.6× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 43123 | Grove City | Standard | 67,626 | $91,008 | 60.3 | 13.0% |
| 43026 | Hilliard | Standard | 65,238 | $111,440 | 36.1 | 11.7% |
| 43081 | Westerville | Standard | 65,020 | $92,422 | 26.4 | 14.0% |
| 43068 | Reynoldsburg | Standard | 60,148 | $70,477 | 20.5 | 10.9% |
| 43228 | Columbus | Standard | 59,077 | $61,713 | 20.2 | 10.7% |
| 43230 | Columbus | Standard | 58,076 | $91,424 | 20.7 | 7.1% |
| 43229 | Columbus | Standard | 55,020 | $57,561 | 9.1 | 15.0% |
| 43232 | Columbus | Standard | 47,364 | $51,417 | 12.7 | 13.5% |
| 43207 | Columbus | Standard | 47,272 | $63,310 | 27.0 | -1.4% |
| 43016 | Dublin | Standard | 46,362 | $109,972 | 19.1 | 34.7% |
| 43235 | Columbus | Standard | 44,589 | $86,666 | 14.5 | 7.5% |
| 43224 | Columbus | Standard | 44,319 | $53,321 | 8.2 | 13.1% |
| 43110 | Canal Winchester | Standard | 43,544 | $77,442 | 50.2 | 23.5% |
| 43204 | Columbus | Standard | 42,962 | $59,266 | 9.6 | 8.4% |
| 43017 | Dublin | Standard | 41,613 | $135,922 | 16.5 | 5.8% |
| 43213 | Columbus | Standard | 36,273 | $54,704 | 10.4 | 13.4% |
| 43221 | Columbus | Standard | 35,293 | $118,768 | 9.8 | 7.8% |
| 43201 | Columbus | Standard | 34,322 | $43,731 | 3.2 | 16.8% |
| 43219 | Columbus | Standard | 32,338 | $52,094 | 16.2 | 14.1% |
| 43004 | Blacklick | Standard | 31,477 | $101,175 | 13.2 | 27.8% |
| 43119 | Galloway | Standard | 29,660 | $91,224 | 32.2 | 4.8% |
| 43220 | Columbus | Standard | 28,792 | $74,298 | 6.5 | 11.2% |
| 43209 | Columbus | Standard | 28,193 | $89,713 | 6.0 | 0.9% |
| 43223 | Columbus | Standard | 28,187 | $46,911 | 9.5 | 14.5% |
| 43054 | New Albany | Standard | 27,594 | $148,100 | 25.6 | 25.7% |
| 43214 | Columbus | Standard | 26,776 | $94,183 | 7.0 | 1.4% |
| 43085 | Columbus | Standard | 26,601 | $112,517 | 7.2 | 11.7% |
| 43227 | Columbus | Standard | 25,358 | $48,159 | 4.2 | 8.9% |
| 43212 | Columbus | Standard | 23,405 | $77,257 | 3.9 | 26.7% |
| 43231 | Columbus | Standard | 23,009 | $73,986 | 4.2 | 17.9% |
| 43211 | Columbus | Standard | 22,313 | $42,579 | 4.7 | 0.7% |
| 43206 | Columbus | Standard | 21,996 | $75,806 | 3.3 | -0.7% |
| 43202 | Columbus | Standard | 20,854 | $69,524 | 2.8 | -0.7% |
| 43215 | Columbus | Standard | 17,836 | $74,087 | 5.5 | 38.9% |
| 43125 | Groveport | Standard | 14,803 | $84,043 | 31.6 | 17.3% |
| 43205 | Columbus | Standard | 12,618 | $60,181 | 2.4 | 1.8% |
| 43210 | Columbus | Standard | 12,164 | $34,423 | 1.3 | 12.4% |
| 43203 | Columbus | Standard | 8,618 | $47,572 | 1.4 | 10.1% |
| 43222 | Columbus | Standard | 4,819 | $32,321 | 1.5 | 14.5% |
| 43137 | Lockbourne | Standard | 2,415 | $49,145 | 30.8 | 61.3% |
| 43217 | Columbus | Standard | 2,091 | $61,356 | 5.8 | -18.9% |
| 43002 | Amlin | PO Box | 1,205 | $102,153 | 0.0 | -56.2% |
| 43126 | Harrisburg | PO Box | 306 | $63,333 | 0.5 | -18.8% |
| 43109 | Brice | PO Box | 152 | $56,940 | 0.1 | 10.1% |
| 43218 | Columbus | PO Box | 0 | — | 0.1 | — |
| 43234 | Columbus | PO Box | — | — | 0.0 | — |
| 43086 | Westerville | PO Box | — | — | 0.0 | — |
| 43226 | Columbus | PO Box | — | — | 0.0 | — |
| 43194 | Lockbourne | Unique | — | — | 0.2 | — |
| 43195 | Groveport | Unique | — | — | 0.0 | — |
| 43236 | Columbus | PO Box | — | — | 0.0 | — |
| 43287 | Columbus | Unique | — | — | 0.0 | — |
| 43069 | Reynoldsburg | Unique | — | — | 0.0 | — |
| 43216 | Columbus | PO Box | — | — | 0.0 | — |
| 43199 | Groveport | Unique | — | — | 0.0 | — |
| 43291 | Columbus | Unique | — | — | 0.0 | — |
| 43266 | Columbus | Unique | — | — | 0.0 | — |
| 43268 | Columbus | Unique | — | — | 0.0 | — |
| 43272 | Columbus | Unique | — | — | 0.0 | — |
| 43271 | Columbus | Unique | — | — | 0.0 | — |
| 43251 | Columbus | Unique | — | — | 0.0 | — |
| 43279 | Columbus | Unique | — | — | 0.0 | — |
| 43260 | Columbus | Unique | — | — | 0.0 | — |
| 43270 | Columbus | Unique | — | — | 0.0 | — |