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County ZIP codes · Ohio · FIPS 39023

Clark County, OH ZIP Codes

Clark County, Ohio has 22 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 16 of the residential ones lie mainly in Clark County and 6 mainly in a neighboring county; 11 cross the county line. Median household income ranges from $42,104 in 45506 (Springfield) to $96,042 in 45387 (Yellow Springs) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Clark County?

43010 · Catawba: $69k43044 · Mechanicsburg: $76k43140 · London: $84k43153 · South Solon: $90k45314 · Cedarville: $85k45316 · Clifton: $83k45319 · Donnelsville: $68k45323 · Enon: $81k45324 · Fairborn: $65k45341 · Medway: $57k45344 · New Carlisle: $79k45349 · North Hampton: $77k45368 · South Charleston: $61k45369 · South Vienna: $89k45372 · Tremont City: $71k45387 · Yellow Springs: $96k45501 · Springfield: –45502 · Springfield: $89k45503 · Springfield: $60k45504 · Springfield: $70k45505 · Springfield: $44k45506 · Springfield: $42k4314045502453684304445344431534536945314453874532445504455064550345505453234534143010 · Catawba: $69k43044 · Mechanicsburg: $76k43140 · London: $84k43153 · South Solon: $90k45314 · Cedarville: $85k45316 · Clifton: $83k45319 · Donnelsville: $68k45323 · Enon: $81k45324 · Fairborn: $65k45341 · Medway: $57k45344 · New Carlisle: $79k45349 · North Hampton: $77k45368 · South Charleston: $61k45369 · South Vienna: $89k45372 · Tremont City: $71k45387 · Yellow Springs: $96k45502 · Springfield: $89k45503 · Springfield: $60k45504 · Springfield: $70k45505 · Springfield: $44k45506 · Springfield: $42k43140455024536843044453444315345369453144538745324455044550645503455054532343010 · Catawba: $69k43044 · Mechanicsburg: $76k43140 · London: $84k43153 · South Solon: $90k45314 · Cedarville: $85k45316 · Clifton: $83k45319 · Donnelsville: $68k45323 · Enon: $81k45324 · Fairborn: $65k45341 · Medway: $57k45344 · New Carlisle: $79k45349 · North Hampton: $77k45368 · South Charleston: $61k45369 · South Vienna: $89k45372 · Tremont City: $71k45387 · Yellow Springs: $96k45502 · Springfield: $89k45503 · Springfield: $60k45504 · Springfield: $70k45505 · Springfield: $44k45506 · Springfield: $42k431404550245368430444534443153453694531445387453244550445506
The residential ZIP codes of Clark County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

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

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $59,595 and $83,644.

They carry 17 postal town names.

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

All 22 residential ZIP codes in Clark County

16 ZIP codes lie mainly in Clark County; 6 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Clark County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
45503 Springfield 32,638 1,869 $60k $168k 100%
45505 Springfield 19,826 1,456 $44k $96k 100%
45502 Springfield 17,692 153 $89k $244k 99%
45344 New Carlisle 16,979 243 $79k $175k 78%
45504 Springfield 16,363 745 $70k $181k 100%
45506 Springfield 13,435 1,099 $42k $107k 100%
45323 Enon 4,961 793 $81k $188k 100%
45369 South Vienna 4,120 96 $89k $221k 97%
45368 South Charleston 3,889 49 $61k $169k 93%
45341 Medway 3,639 568 $57k $140k 100%
45319 Donnelsville 308 870 $68k $142k 100%
43010 Catawba 305 1,320 $69k $137k 100%
45372 Tremont City 265 1,199 $71k $158k 100%
45349 North Hampton 234 1,170 $77k $174k 100%
45316 Clifton 141 1,093 $83k $200k 54%
45501 Springfield no residents 0 – – 100%

Partly in Clark County

Residential ZIP codes mainly in another county that reach at least 1% into Clark County, by their share here
In this county
45324 Fairborn 41,194 1,243 $65k $184k 22%
43044 Mechanicsburg 4,964 62 $76k $235k 15%
43153 South Solon 1,112 21 $90k $184k 14%
45387 Yellow Springs 5,285 185 $96k $333k 8%
45314 Cedarville 6,536 127 $85k $313k 2%
43140 London 24,237 110 $84k $243k 1%

Download the 22 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?

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

Share of each ZIP code's land in Clark County and in the neighboring counties
ZIPIn ClarkElsewhere
4532422%Greene County 78%
431401%Madison County 96%; Franklin County 2%
4550299%Champaign County 1%
4534478%Miami County 20%; Champaign County 1%
453142%Greene County 98%
453878%Greene County 92%
4304415%Champaign County 69%; Madison County 16%
4536997%Madison County 3%
4536893%Greene County 7%
4315314%Madison County 75%; Fayette County 9%; Greene County 2%
4531654%Greene County 46%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Clark County's ZIP codes use 4 prefixes: 430, 431, 453 and 455.

Three-digit prefixes of Clark 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 Clark County's
PrefixSectional centerHereAll codes
430 Columbus, OH (SCF 430) 2 70
431 Columbus, OH (SCF 430) 2 49
453 Dayton, OH (SCF 453) 12 80
455 Dayton, OH (SCF 453) 6 6

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