Area Code 573

Missouri

Area code 573 serves Missouri, primarily Columbia, in the Central Time (CT) time zone. It has served the region since 07-Jan-1996.

Published: Verified against NANPA and FCC records

Overlay Area Code

This area code shares its geographic footprint with an overlay code, so the same cities are served by two area codes. Because overlays leave existing numbers untouched, this region's relief planning favors adding codes over redrawing boundaries.

The codes serving this same region: area code 235 (Columbia).

With prefix utilization already at 98.3%, numbering resources here are under sustained pressure — context that explains why overlays were introduced.

In service since: 07-Jan-1996

Learn more about overlay and split area codes →

Demographics & Economics

Total Population
2,265,352
Population Density
36 people/sq mi
below U.S. average (U.S.: 95 people/sq mi)
Median Household Income
$62,903
below U.S. median (U.S.: $80,734)
Poverty Rate
14.6%
above U.S. average (U.S.: 12.5%)
Unemployment Rate
4.1%
below U.S. average (U.S.: 5.2%)
Education Attainment
Bachelor's Degree+
23.3%
below U.S. average (U.S.: 35.7%)
High School or Lower
41.3%

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

  • Central Time (CT)

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

Central Time (CT)
 
 

Prefix Utilization

Geographic Coverage

State

MO

Major Cities

  • Columbia
  • Jefferson City
  • Cape Girardeau
  • Rolla
  • Farmington
  • Hannibal
  • Poplar Bluff
  • Sikeston
  • Jackson
  • Fort Leonard Wood
  • Fulton
  • Mexico
  • Kennett
  • Park Hills
  • Perryville
  • Oak Grove
  • Dexter
  • Bonne Terre
  • Sullivan
  • Caruthersville
  • Waynesville
  • St. Robert
  • Ste. Genevieve
  • Desloge

and 290 more cities

Area Code 573 geographic coverage map (light mode)

Demographics

The estimated population served by area code 573 is approximately 2,265,352. The population density is 36 people per square mile, which is lower than the national average of 95. The median household income is $62,903, which is lower than the national median of $80,734. Approximately 23.3% 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 14.6%, which is higher than the national rate of 12.5%.

History

Area code 573 was established in 1996 as a geographic area code. It shares its territory with area code area code 235.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 573).

CountyPopulationShare
Boone, MO194,7188.6%
Callaway, MO190,9618.4%
Cape Girardeau, MO119,8995.3%
St. Francois, MO85,8963.8%
Cole, MO80,3473.5%
Phelps, MO75,4453.3%
Ste. Genevieve, MO74,7993.3%
Crawford, MO64,3642.8%
Pulaski, MO60,4932.7%
Washington, MO59,8512.6%
Maries, MO59,4822.6%
Camden, MO57,1012.5%
Dent, MO55,7632.5%
Stoddard, MO55,3702.4%
Miller, MO53,4072.4%
Osage, MO50,8572.2%
Scott, MO48,5592.1%
Gasconade, MO48,5242.1%
Butler, MO48,1192.1%
New Madrid, MO47,8462.1%
Audrain, MO42,7001.9%
Ralls, MO39,7321.8%
Monroe, MO37,0981.6%
Bollinger, MO36,9411.6%
Morgan, MO36,4041.6%
Marion, MO35,7321.6%
Mississippi, MO34,7411.5%
Dunklin, MO33,7341.5%
Pemiscot, MO33,2231.5%
Franklin, MO32,9691.5%
Pike, MO32,4101.4%
Shannon, MO23,3381.0%
Moniteau, MO22,3971.0%
Perry, MO22,3501.0%
Texas, MO20,8450.9%
Madison, MO20,5980.9%
Iron, MO20,2860.9%
Laclede, MO20,2810.9%
Jefferson, MO20,2570.9%
Lincoln, MO19,7490.9%
Wayne, MO17,1690.8%
Montgomery, MO17,0350.8%
Reynolds, MO15,0810.7%
Carter, MO14,1860.6%
Ripley, MO13,6780.6%
Oregon, MO13,3000.6%
Lewis, MO11,1540.5%
Cooper, MO7,8110.3%
Howard, MO6,7680.3%
Warren, MO6,6480.3%
Benton, MO5,4380.2%
Shelby, MO5,0320.2%
Clark, MO4,6210.2%
Randolph, MO3,0850.1%
Randolph, IL2,3500.1%
Dallas, MO1,8350.1%
Hickory, MO1,7220.1%
Knox, MO8530.0%

Area Code 573 Family Tree

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314557573636235
2
Total Codes
0
Splits
1
Overlays
1
Max Depth

All Descendants

Code ▲StateType In Service Parent
235MOoverlay24-Mar-2024573

Area code 573 was originally assigned in 07-Jan-1996 to serve MO. Over the years, it has generated 1 descendant area code through a combination of geographic splits and overlays as demand for telephone numbers grew.

Call Context

Mixed urban-rural area

This area code spans a mix of urban centers and rural communities across MO, with Columbia as a primary city.

Nearby Area Codes

Area codes geographically closest to 573.

Area code 636 map card showing O'Fallon (light mode)
636MOO'FallonCentral Time (CT)Split
Area code 314 map card showing St. Louis (light mode)
314MOSt. LouisCentral Time (CT)Geographic
Area code 557 map card showing St. Louis (light mode)
557MOSt. LouisCentral Time (CT)Overlay
Area code 618 map card showing Belleville (light mode)
618ILBellevilleCentral Time (CT)Geographic
Area code 730 map card showing Belleville (light mode)
730ILBellevilleCentral Time (CT)Overlay

Other Area Codes in Missouri

Area codes that also serve Missouri, linked for easy comparison.