Skip to main content
USAvizUSAviz

Local data snapshots and weekly insights for every place in America.

Explore

  • Insights
  • Search
  • Browse states
  • Browse metros

Company

  • About
  • Methodology
  • Sources
  • Embed Our Data
  • Contact
Privacy·Terms·Do Not Sell or Share

© 2026 USAviz.com. All rights reserved.

USAvizUSAviz
Insights
About
Home
861
  1. Home
  2. Area Codes
  3. Area code 861
Illinois (IL)Central Time (CT)

Area Code 861

Illinois (IL) * Peoria, Bloomington, Galesburg, Abingdon, Adair, Albany, Aledo, Alexis * Central Time (CT)

894.7K

Population

214

ZIP codes

Illinois

Primary state

Central Time (CT)

Time zones

What stands out

  • Coverage: 894.7K people across 214 ZIP codes.
  • Overlapping area codes: 309
  • Major cities: Peoria, Bloomington, Galesburg.
Primary state:Illinois (IL)/Major cities:Peoria, Bloomington, Galesburg, Abingdon, Adair, Albany, Aledo, Alexis

Browse sections

Basics

Percentiles compare this area code to other area codes nationwide.

Population

894.7K

ZIP codes

214

Median age

39.5 yrs

Population density

95.6/sq mi

Mean commute time

21 min

Avg. household size

2.3

Economy

Percentiles compare this area code to other area codes nationwide.

Median household income

$73.9K

Per capita income

$39.3K

Median home value

$163.8K

Median rent

$923

Poverty rate

12.9%

Neighbors

Neighboring area codes

217319447563779815

National Percentile Rankings

How this area code compares to other area codes nationwide.

Notes & Sources
  • Area-code boundaries can change over time; verify official assignments with NANPA for critical use.
  • In regions with overlapping area codes, new numbers may use a different code.
  • This page aggregates ZIP-based crosswalks for orientation and does not indicate phone-number availability.

Data freshness

ACS 5-year
2020–2024
Page updated
2026-04-26

Release schedule and upstream dates: Sources.

Data sources

U.S. Census (ACS 5-year)U.S. Census TIGER/LineNANPA

Derived statistics

  • Area codes are not Census geographies; statistics are estimated by aggregating ZCTA (ZIP) values for associated ZIPs.
  • ZIP↔area code associations are derived from NPA boundary polygons and ZCTA centroid points, and can be approximate.
  • Median age, mean commute, and household size are population-weighted; population density uses summed ZIP land area.
Area code overlays and service areas are primarily governed by NANPA; this page uses aggregated geographic overlays for orientation only.

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.

Related Insights

America's Most Forested States, Ranked

A data-first look at which states have the most forest cover, which have the least, and why forest land is not the same as the tree canopy people actually experience.

Where College Degrees Concentrate - and Where They Don’t

More than a third of U.S. adults 25+ now hold a bachelor’s degree. But the distribution is sharply uneven across states and metros.

More Than Half of U.S. Renters Are Cost-Burdened

A majority of American renters now spend 30% or more of their income on housing. The burden is sharpest in Florida, where 6 of the 10 most-burdened metros cluster.

On this page