Plainfield Authority
Plainfield is a high-income, family-oriented town of 46,708 with home prices 1.6× the Illinois median.
Plainfield, Illinois
Plainfield (46,708 residents) operates as a chartered municipality within Kendall County, Illinois. At $144,000 median household income, Plainfield sits in the upper income bracket of Illinois.
Definition and scope
Plainfield is a chartered municipality within Kendall County, Illinois, Illinois. Local services and ordinances are coordinated through county and state-level agencies. The city operates within Congressional District 14 and is part of the Chicago-Naperville-Elgin, IL-IN metropolitan area.
Who lives here
Plainfield has approximately 46,708 residents. The median age is 37.5 years. Roughly 88% of housing units are owner-occupied. The median home value is $431,400.
Demographic composition (Census 2023 ACS5):
- White (non-Hispanic): 66.4%
- Black or African American: 9.0%
- Hispanic or Latino: 9.6%
- Asian: 10.5%
Economy and earnings
Median household income in Plainfield is $144,000. Poverty rate stands at 4.2%. Unemployment rate at last release was 2.7%. Educational attainment: 56.0% of residents 25 and over hold a bachelor's degree or higher.
Public services and infrastructure
Available public services on file for Plainfield:
- Public schools: 30
- Public libraries: 1
- Fire stations: 3
- Police stations: 3
Getting around
For air travel, residents typically use Riley's Field. Federal court business routes through Will County Courthouse. Amtrak service is available at Joliet, Illinois.
Geography and climate
Plainfield sits at an elevation of 615 feet above sea level. The USDA plant hardiness zone is 6a.
References
- Illinois State Authority — state-level reference for Illinois.
- U.S. Census Bureau, American Community Survey 5-Year Estimates — population, income, demographic data.
- Authority Network America — federal- and network-level reference.
Federal Disaster Declarations (7)
Codes & laws coverage
Municipal code indexing
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Laws & Codes
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- 2026-06454 Incorrect Terminology in Regulatory Text; Technical Amendments · source
- 2026-07667 Notice of 2026 Coastal Plain Oil and Gas Lease Sale · source
- 2025-24202 Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 of the · source
- 2026-08295 Submission for OMB Review; Comment Request · source
- 2026-08127 Foreign-Trade Zone 255; Application for Subzone; Fisher BioServices; Frederick, Maryland · source
- 2026-02639 Ripe Olives From Spain: Preliminary Results and Partial Rescission of Countervailing Duty Administrative Review; 2023 · source
- 2026-01454 Slag Pots From the People's Republic of China: Antidumping Duty Order and Countervailing Duty Order · source
- 2026-08483 Agency Information Collection Activities: Requests for Comments; Clearance of a New Approval of Information Collection: Reauthorization Sect · source
- 2026-05316 Center for Scientific Review; Notice of Closed Meetings · source
- 2026-05906 Notice Pursuant to the National Cooperative Research and Production Act of 1993-Biopharmaceutical Manufacturing Preparedness Consortium · source
Trades & Services
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