Area Code 872

Illinois (IL) • Chicago, Harwood Heights, Riverdale • Central Time (CT)

What Stands Out

•Coverage: 2.7M people across 55 ZIP codes (primarily Cook County, IL).
•Major cities: Chicago, Harwood Heights, Riverdale.

Spotlight: Coverage

Snapshot highlights for area code 872.

Income

59th

Home values

74th

Poverty rate

76th

Area Code Basics

Primary State

Illinois (IL)

States Served

Illinois (IL)

Major Cities

Chicago, Harwood Heights, Riverdale

Time Zone(s)

Central Time (CT)

Est. Population

2.7M

ZIP Codes

Data accuracy & methodology

This report aggregates 2020–2024 ACS 5-year estimates and geographic overlays for orientation. Area-code service areas can cross ZIP/state boundaries and change over time; verify official assignments with NANPA for critical use.