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County ZIP codes · Indiana · FIPS 18129

Posey County, IN ZIP Codes

Posey County, Indiana has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Posey County and 3 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $68,494 in 47712 (Evansville) to $75,681 in 47620 (Mount Vernon) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Posey County?

47612 · Cynthiana: $73k47616 · Griffin: $79k47620 · Mount Vernon: $76k47631 · New Harmony: $66k47633 · Poseyville: $69k47638 · Wadesville: $94k47712 · Evansville: $69k4762047631476164771247633476384761247612 · Cynthiana: $73k47616 · Griffin: $79k47620 · Mount Vernon: $76k47631 · New Harmony: $66k47633 · Poseyville: $69k47638 · Wadesville: $94k47712 · Evansville: $69k4762047631476164771247633476384761247612 · Cynthiana: $73k47616 · Griffin: $79k47620 · Mount Vernon: $76k47631 · New Harmony: $66k47633 · Poseyville: $69k47638 · Wadesville: $94k47712 · Evansville: $69k476204763147616477124763347638
The residential ZIP codes of Posey 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?

They carry 7 postal town names: Evansville, Mount Vernon, Wadesville, Poseyville, New Harmony, Cynthiana, Griffin.

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

All 7 residential ZIP codes in Posey County

4 ZIP codes lie mainly in Posey County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Posey County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
47620 Mount Vernon 12,361 59 $76k $214k 100%
47638 Wadesville 3,633 76 $94k $283k 100%
47633 Poseyville 2,602 42 $69k $156k 89%
47631 New Harmony 2,148 36 $66k $197k 100%

Partly in Posey County

Residential ZIP codes mainly in another county that reach at least 1% into Posey County, by their share here
In this county
47616 Griffin 232 5 $79k $123k 47%
47612 Cynthiana 818 51 $73k $122k 39%
47712 Evansville 25,444 406 $69k $194k 19%

Download the 7 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?

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

Share of each ZIP code's land in Posey County and in the neighboring counties
ZIPIn PoseyElsewhere
4771219%Vanderburgh County 81%
4763389%Gibson County 10%
4761239%Gibson County 61%
4761647%Gibson County 53%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Posey County's ZIP codes use 2 prefixes: 476 and 477.

Three-digit prefixes of Posey 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 Posey County's
PrefixSectional centerHereAll codes
476 Evansville, IN (SCF 476) 6 30
477 Evansville, IN (SCF 476) 1 32

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