Area Code 478

Georgia

Area code 478 serves Georgia, primarily Macon-Bibb County, in the Eastern Time (ET) time zone. It was created from a split of area code 912.

Published: February 17, 2026Verified against NANPA and FCC records

Split Area Code

This area code exists because its parent region ran low on available numbers: the parent territory was divided geographically, this code took over one part of it, and the parent kept serving the rest. Existing customers generally keep their numbers — only the code changes for the newly drawn region.

This area code was split from area code 912 (Savannah).

In service since: 01-Aug-2000

Learn more about overlay and split area codes →

Demographics & Economics

Total Population: 1,337,479
Population Density: 56 people/sq mi
below U.S. average (U.S.: 95 people/sq mi)
Median Household Income: $55,010
below U.S. median (U.S.: $80,734)
Poverty Rate: 18.2%
above U.S. average (U.S.: 12.5%)
Unemployment Rate: 5.4%
near U.S. average (U.S.: 5.2%)
Education Attainment: Bachelor's Degree+
21.4%
below U.S. average (U.S.: 35.7%)
High School or Lower
39.8%

Statistics are population-weighted aggregations from Census ACS 5-year estimates. Population figures are approximate — see Sources & Methodology for details on how area code populations are derived.

See how this area code compares to all US area codes in the income ranking and density ranking.

Time Zone

Eastern Time (ET)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Eastern Time (ET)

Prefix Utilization

Geographic Coverage

State

Major Cities

Macon-Bibb County
Warner Robins
Perry
Milledgeville
Dublin
Fort Valley
Centerville
Swainsboro
Byron
Sandersville
Eastman
Cochran
Forsyth
Hawkinsville
Wrightsville
Gray
Hardwick
Unadilla
Montezuma
Millen
East Dublin
Louisville
Gordon
Davisboro

and 51 more cities

Area Code 478 geographic coverage map (light mode)

Demographics

The estimated population served by area code 478 is approximately 1,337,479. The population density is 56 people per square mile, which is lower than the national average of 95. The median household income is $55,010, which is lower than the national median of $80,734. Approximately 21.4% of adults hold a bachelor's degree or higher, compared to the national rate of 35.7%. This rate is lower than the national average. The poverty rate stands at 18.2%, which is higher than the national rate of 12.5%.

History

Area code 478 was created from a split of area code 912. It was introduced in 2000 as part of a geographic division to provide additional numbering resources.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 478).

County	Population	Share
Houston, GA	213,676	16.0%
Bibb, GA	178,499	13.3%
Jones, GA	101,392	7.6%
Monroe, GA	74,523	5.6%
Laurens, GA	61,604	4.6%
Baldwin, GA	61,486	4.6%
Peach, GA	60,954	4.6%
Wilkinson, GA	58,034	4.3%
Crawford, GA	55,241	4.1%
Macon, GA	54,382	4.1%
Pulaski, GA	43,298	3.2%
Twiggs, GA	42,981	3.2%
Putnam, GA	42,032	3.1%
Hancock, GA	41,194	3.1%
Dodge, GA	40,463	3.0%
Bleckley, GA	30,910	2.3%
Washington, GA	28,183	2.1%
Emanuel, GA	26,388	2.0%
Butts, GA	18,311	1.4%
Burke, GA	17,909	1.3%
Johnson, GA	17,110	1.3%
Jenkins, GA	11,854	0.9%
Screven, GA	9,223	0.7%
Jefferson, GA	8,972	0.7%
Dooly, GA	8,535	0.6%
Taylor, GA	7,220	0.5%
Bulloch, GA	5,874	0.4%
Schley, GA	4,842	0.4%
Candler, GA	4,446	0.3%
Treutlen, GA	2,679	0.2%
Lamar, GA	1,664	0.1%
Upson, GA	1,664	0.1%
Wilcox, GA	1,098	0.1%
Jasper, GA	838	0.1%