Area Code 447

Illinois

Area code 447 serves Illinois, primarily Springfield, in the Central Time (CT) time zone. It is an overlay area code sharing territory with area code 217.

Published: February 17, 2026Verified 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 217 (Springfield).

In service since: 27-Mar-2021

Learn more about overlay and split area codes →

Demographics & Economics

Total Population: 1,515,698
Population Density: 54 people/sq mi
below U.S. average (U.S.: 95 people/sq mi)
Median Household Income: $66,220
below U.S. median (U.S.: $80,734)
Poverty Rate: 13.7%
near U.S. average (U.S.: 12.5%)
Unemployment Rate: 4.5%
below U.S. average (U.S.: 5.2%)
Education Attainment: Bachelor's Degree+
27.8%
below U.S. average (U.S.: 35.7%)
High School or Lower
36.5%

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

Major Cities

Springfield
Champaign
Decatur
Quincy
Urbana
Danville
Jacksonville
Charleston
Mattoon
Chatham
Lincoln
Rantoul
Effingham
Taylorville
Mahomet
Savoy
Paris
Clinton
Litchfield
Monticello
Mount Zion
Beardstown
Hillsboro
Carlinville

and 327 more cities

Area Code 447 geographic coverage map (light mode)

Demographics

The estimated population served by area code 447 is approximately 1,515,698. The population density is 54 people per square mile, which is lower than the national average of 95. The median household income is $66,220, which is lower than the national median of $80,734. Approximately 27.8% 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 13.7%, which is near the national rate of 12.5%.

History

Area code 447 serves as an overlay for the same territory as area code 217. It was introduced in 2021 to provide additional phone number capacity for the region. It shares its territory with area code area code 217.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 447).

County	Population	Share
Champaign, IL	220,981	14.6%
Sangamon, IL	206,927	13.7%
Macon, IL	115,859	7.6%
Vermilion, IL	77,078	5.1%
Coles, IL	74,650	4.9%
Adams, IL	71,840	4.7%
Montgomery, IL	53,974	3.6%
Shelby, IL	53,953	3.6%
Christian, IL	52,027	3.4%
Morgan, IL	44,571	2.9%
Moultrie, IL	42,792	2.8%
Macoupin, IL	42,403	2.8%
Cumberland, IL	41,035	2.7%
Scott, IL	34,587	2.3%
Piatt, IL	33,856	2.2%
Logan, IL	33,752	2.2%
Effingham, IL	29,950	2.0%
Clark, IL	28,807	1.9%
Edgar, IL	28,639	1.9%
Douglas, IL	25,353	1.7%
Pike, IL	20,121	1.3%
Cass, IL	19,840	1.3%
Hancock, IL	19,780	1.3%
Menard, IL	16,816	1.1%
Ford, IL	16,233	1.1%
De Witt, IL	15,461	1.0%
Jasper, IL	13,107	0.9%
Schuyler, IL	12,150	0.8%
Greene, IL	11,927	0.8%
McLean, IL	9,874	0.7%
Iroquois, IL	9,449	0.6%
Brown, IL	7,938	0.5%
Fayette, IL	5,226	0.3%
Bond, IL	4,312	0.3%
Mason, IL	4,278	0.3%
Henderson, IL	3,618	0.2%
Crawford, IL	2,937	0.2%
Madison, IL	2,635	0.2%
Clay, IL	2,336	0.2%
McDonough, IL	1,617	0.1%
Livingston, IL	1,107	0.1%
Calhoun, IL	947	0.1%
Tazewell, IL	608	0.0%
Jersey, IL	347	0.0%