Where does this data come from?

Name: Population — Jefferson, IA (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-IA-19101.POP.A.NSA.

Population — Jefferson, IA (persons)

AnnualNot seasonally adjustedCode US-IA-19101.POP.A.NSA

Latest15,781 persons2024

Previous15,626 persons2023

Year ago15,626 persons2023

Population — Jefferson, IA (persons) was 15,781 persons in 2024, up 1.0% from 2023.

That is the highest reading since 2021.

Over the past ten years it has ranged from 15,626 persons (2023) to 16,660 persons (2014), averaging 15,985 persons.

Population — Jefferson, IA (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	15,781 persons
2023	15,626 persons
2022	15,632 persons
2021	15,786 persons
2020	15,699 persons
2019	15,709 persons
2018	15,898 persons
2017	16,171 persons
2016	16,357 persons
2015	16,511 persons
2014	16,660 persons
2013	16,764 persons
2012	16,680 persons
2011	16,766 persons
2010	16,769 persons
2009	16,782 persons
2008	16,607 persons
2007	16,600 persons
2006	16,401 persons
2005	16,315 persons
2004	16,298 persons
2003	16,194 persons
2002	16,131 persons
2001	16,207 persons

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

Get Population — Jefferson, IA (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-IA-19101.POP.A.NSA"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/US-IA-19101.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	16,660 persons (2014)
10-year low	15,626 persons (2023)
10-year average	15,985 persons
Source agency	U.S. Bureau of Economic Analysis (Regional Economic Accounts)
Makrognosis code	US-IA-19101.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: Jefferson County, IA (U)Employment: Jefferson County, IA (U)Labor Force: Jefferson County, IA (U)Per-Capita Personal Income — Jefferson, IA (USD)Personal Income — Jefferson, IA (USD thousands)Unemployment: Jefferson County, IA (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-IA-19101.POP.A.NSA.

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