Where does this data come from?

Name: Population — Warren, IL (persons)
Creator: U.S. Bureau of Economic Analysis (Regional Economic Accounts)

It is collected directly from U.S. Bureau of Economic Analysis (Regional Economic Accounts) and is available through the Makrognosis API under the code US-IL-17187.POP.A.NSA.

Population — Warren, IL (persons)

AnnualNot seasonally adjustedCode US-IL-17187.POP.A.NSA

Latest16,217 persons2024

Previous16,224 persons2023

Year ago16,224 persons2023

Population — Warren, IL (persons) was 16,217 persons in 2024, unchanged from 2023.

That is the lowest reading since the series began in 1969.

Over the past ten years it has ranged from 16,217 persons (2024) to 17,750 persons (2014), averaging 16,912 persons.

Population — Warren, IL (persons) (persons), 1969 – 2024. Source: U.S. Bureau of Economic Analysis (Regional Economic Accounts).

Showing the full history (downsampled for display). Open the interactive chart to zoom and switch transforms.

Recent data

Period	Value
2024	16,217 persons
2023	16,224 persons
2022	16,368 persons
2021	16,595 persons
2020	16,832 persons
2019	16,914 persons
2018	17,066 persons
2017	17,210 persons
2016	17,349 persons
2015	17,503 persons
2014	17,750 persons
2013	17,695 persons
2012	17,766 persons
2011	17,845 persons
2010	17,712 persons
2009	17,689 persons
2008	17,665 persons
2007	17,828 persons
2006	17,839 persons
2005	17,874 persons
2004	17,894 persons
2003	18,227 persons
2002	18,388 persons
2001	18,471 persons

Last 24 observations. The full history (56 observations) is available through the API.

Get Population — Warren, IL (persons) in your code or spreadsheet

One guessable code, agency-direct, updated on release. Free tier available.

curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/US-IL-17187.POP.A.NSA"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/US-IL-17187.POP.A.NSA",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]

Get a free API key → · API docs

About this series

Latest observation	2024
First observation	1969
Observations	56
Frequency	Annual
Units	persons
Adjustment	Not seasonally adjusted
10-year high	17,750 persons (2014)
10-year low	16,217 persons (2024)
10-year average	16,912 persons
Source agency	U.S. Bureau of Economic Analysis (Regional Economic Accounts)
Makrognosis code	US-IL-17187.POP.A.NSA

This series is a labelled reference series (an official figure republished by an aggregator) rather than a first print from the agency itself.

Other United States indicators

Unemployment Rate: Warren County, IL (U)Employment: Warren County, IL (U)Labor Force: Warren County, IL (U)Per-Capita Personal Income — Warren, IL (USD)Personal Income — Warren, IL (USD thousands)Unemployment: Warren County, IL (U)

National figure

United States Population, midperiod

FAQ

Where does this data come from?: It is collected directly from U.S. Bureau of Economic Analysis (Regional Economic Accounts) and is available through the Makrognosis API under the code US-IL-17187.POP.A.NSA.

Last updated 2026-07-12. Source: U.S. Bureau of Economic Analysis (Regional Economic Accounts). Original title: “Population — Warren, IL (persons)”.