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County ZIP codes · Georgia · FIPS 13021

Bibb County, GA ZIP Codes

Bibb County, Georgia has 23 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 10 for PO boxes or a single organization. 9 of the residential ones lie mainly in Bibb County and 4 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $30,042 in 31206 to $88,434 in 31220 (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Bibb County?

31020 · Dry Branch: $70k31052 · Lizella: $85k31066 · Musella: $62k31201 · Macon: $29k31204 · Macon: $39k31206 · Macon: $30k31207 · Macon: –31210 · Macon: $78k31211 · Macon: $49k31213 · Macon: –31216 · Macon: $73k31217 · Macon: $45k31220 · Macon: $88k310203121731066312163105231220312103121131206312043120131020 · Dry Branch: $70k31052 · Lizella: $85k31066 · Musella: $62k31201 · Macon: $29k31204 · Macon: $39k31206 · Macon: $30k31207 · Macon: –31210 · Macon: $78k31211 · Macon: $49k31216 · Macon: $73k31217 · Macon: $45k31220 · Macon: $88k310203121731066312163105231220312103121131206312043120131020 · Dry Branch: $70k31052 · Lizella: $85k31066 · Musella: $62k31201 · Macon: $29k31204 · Macon: $39k31206 · Macon: $30k31207 · Macon: –31210 · Macon: $78k31211 · Macon: $49k31216 · Macon: $73k31217 · Macon: $45k31220 · Macon: $88k3102031217310663121631052312203121131206
The residential ZIP codes of Bibb 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 $44,809 and $78,447.

They carry 4 postal town names: Macon, Lizella, Dry Branch, Musella.

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

All 13 residential ZIP codes in Bibb County

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

Residential ZIP codes mainly in Bibb County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
31210 Macon 33,288 805 $78k $286k 75%
31204 Macon 32,421 2,223 $39k $135k 100%
31206 Macon 24,310 912 $30k $90k 100%
31220 Macon 16,494 342 $88k $193k 55%
31216 Macon 16,328 285 $73k $212k 100%
31052 Lizella 9,001 126 $85k $229k 52%
31201 Macon 7,891 843 $29k $171k 100%
31207 Macon 1,479 7,585 – – 100%
31213 Macon no residents 0 – – 100%

Partly in Bibb County

Residential ZIP codes mainly in another county that reach at least 1% into Bibb County, by their share here
In this county
31217 Macon 17,732 165 $45k $105k 30%
31211 Macon 15,868 358 $49k $168k 18%
31020 Dry Branch 1,617 13 $70k $151k 4%
31066 Musella 803 13 $62k $241k 1%

Download the 23 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 Bibb County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Bibb County and in the neighboring counties
ZIPIn BibbElsewhere
3121075%Monroe County25%
3121730%Jones County40%; Twiggs County30%
3122055%Monroe County45%
3121118%Jones County82%
3105252%Crawford County48%
310204%Twiggs County96%
310661%Crawford County93%; Monroe County6%

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

PO Box and single-organization ZIP codes

ZIP codes in Bibb County without a residential area (GeoNames postal codes)
ZIPPostal name
31202Macon
31203Macon
31205Macon
31208Macon
31209Macon
31221Macon
31294Macon
31295Macon
31296Macon
31297Macon

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Bibb County's ZIP codes use 2 prefixes: 310 and 312.

Three-digit prefixes of Bibb 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 Bibb County's
PrefixSectional centerHereAll codes
310Macon, GA (SCF 310)392
312Macon, GA (SCF 310)2020

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