Is Jefferson County the best Missouri county for your business?

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Now you can skip hours of internet research and jump straight to getting answers with our meaningful at-a-glance Demographics by County Report. With the most current & most popular demographic data, it's the perfect starting point for your research about Jefferson County and the rest of Missouri.

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We know Jefferson County Demographics, just keep scrolling...

Jefferson County Population

Sources: United States Census Bureau. 2021 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 8 December 2022.

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2022. U.S. Census Bureau, Population Division. Web. May 2023. http://www.census.gov/.

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2019. U.S. Census Bureau, Population Division. Web. May 2021. http://www.census.gov/.

United States Census Bureau. "P2 Hispanic or Latino, and Not Hispanic or Latino by Race." 2020 Census State Redistricting Data (Public Law 94-171) Summary File. U.S. Census Bureau, 2020 Census. Web. 12 August 2021. https://www.census.gov/.

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Jefferson County Demographics Summary

population icon Population

With 229,336 people, Jefferson County is the 7th most populated county in the state of Missouri out of 115 counties. But watch out, Jefferson County, because Boone County with 187,690 people and Jasper County with 124,075 people are right behind you.

race icon Race & Ethnicity

The largest Jefferson County racial/ethnic groups are White (90.9%) followed by Two or More (5.0%) and Hispanic (2.1%).

income icon Median Income

In 2021, the median household income of Jefferson County households was $71,285. Jefferson County households made slightly more than Christian County households ($69,212) and Lafayette County households ($70,969) . However, 6.2% of Jefferson County families live in poverty.

age icon Median Age

The median age for Jefferson County residents is 39.9 years young.

FACT

86% of people CANNOT find the data they're looking for on the US Census Bureau website. Source: Nielsen Norman Group

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"Your starter report certainly saved me a considerable amount of time. I am just too busy to garner this needed data any other way. It truly would have taken hours of an employee's time or my own to get this much information. I was fortunate to find a company that had all the demographics that I needed and at a very reasonable price."

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"My supervisor had assigned me the task of getting population data for the county for our required county education strategic plan. I had some information from Kids Count but need race, gender, age, etc. and the government census site was shutdown. I was so surprised to get a report within seconds and it had lots of charts and graphs that my supervisor liked."

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