MCDC News and Updates

120th Congressional Districts and 2026 State Legislative Districts Now Available in Geocorr 2022

New in the Geocorr 2022 application this month: We’ve added the 120th U.S. congressional districts and 2026-vintage state legislative districts.

  • Ten states (Alabama, California, Florida, Louisiana, Missouri, North Carolina, Ohio, Tennessee, Texas, and Utah) redrew their congressional district plans for the 120th Congress.
  • Three states (Michigan, Minnesota, and Mississippi) made changes to their upper (senate) state legislative districts for 2026.
  • Two states (Minnesota and Mississippi) made changes to their lower (house) state legislative districts for 2026.

States not listed (and the District of Columbia and Puerto Rico) made no changes to these districts since the previous cycle.

Please report any errors to Glenn Rice (riceg@missouri.edu).

Story Map

MSDIS and MCDC Revisit Lewis and Clark

One of the most important datasets that MCDC’s partner MSDIS (Missouri Spatial Data Information Service) maintains is a series of interactive maps of the journey that Meriwether Lewis and William Clark took through Missouri in 1804 as the first leg of their now famous expedition to the Pacific Northwest.

For this month’s story map, we’re starting to look at the Lewis and Clark data in the context of modern mapping and new aerial photography collected in 2023 and 2024. This is just a small preview of the first of several new maps that MCDC and MSDIS will publish as we find new uses for this unique data.

Missouri Census Data Center partners with MSDIS on mapping and data projects. MSDIS is a spatial data retrieval and archival system offering many mapping resources, primarily focused on the state of Missouri.

Story Map

Missouri Gas Prices in 2026

In June 2022,  MSDIS took a look at gas prices in Missouri compared to median household income . With the cost of fuel back in the headlines, we thought it important to revisit this subject and its impact on Missouri communities.

For this month’s story map about Missouri fuel prices, we compare prices at two different points during recent events in 2026.

Missouri Census Data Center partners with MSDIS on mapping and data projects. MSDIS is a spatial data retrieval and archival system offering many mapping resources, primarily focused on the state of Missouri.

Story Map

Missouri Children and SNAP

The Supplemental Nutrition Assistance Program (SNAP) is the largest nutrition assistance program in the United States, providing credits for food purchase to low-income participants and households. Missouri KIDS COUNT is the state data provider for the national KIDS COUNT project of the Annie E. Casey Foundation. KIDS COUNT supports children’s well-being by providing data to inform policy and investments.

In 2018, we posted a story map exploring topics including food insecurity and asthma hospitalizations in addition to SNAP benefits. This month’s story map compares the 2018 map for the percentage of children in Missouri households by county that receive SNAP benefits to the most recent corresponding Missouri KIDS COUNT data from 2023.

Missouri Census Data Center partners with MSDIS on mapping and data projects. MSDIS is a spatial data retrieval and archival system offering many mapping resources, primarily focused on the state of Missouri.

Story Map

Migration and Unemployment in Missouri

Missouri is a diverse and geographically complex state. Two major cities, multiple college towns, and sprawling rural landscapes create an interesting picture. This MCDC story map examines how net migration and unemployment rates fit into that picture on a county and regional level.

The data are from the MCDC’s State/County Annual Population Change web application, the U.S. Bureau of Labor Statistics, the U.S. Census Bureau, and the University of Missouri System (for MU employment data).

Missouri Census Data Center frequently works with MSDIS on mapping and data projects. MSDIS is a spatial data retrieval and archival system offering many mapping resources, primarily focused on the state of Missouri.

Story Map

Missouri Accommodations and Food Services Employment Trends

The Accommodation and Food Services employment sector, which includes businesses such as hotels, motels, resorts, restaurants, fast food outlets, cafes, bars, and caterers, plays a vital role in tourism, business travel, and community life. This sector provides essential services to both residents and visitors.

This month’s story map will explore the dynamics of the Accommodation and Food Services workforce across Missouri’s 115 counties over a ten-year period, from 2011 to 2021. The MCDC‘s County Business Patterns collection is the source for this data.

Missouri Census Data Center frequently works with MSDIS on mapping and data projects. MSDIS is a spatial data retrieval and archival system offering many mapping resources, primarily focused on the state of Missouri.

Story Map

Missouri Retail Trade Employment, 2011-2021

Despite changes in the nature of retail jobs in the past decade, a significant portion of Missouri’s working population — more than 25% in some counties — is still employed in the retail sector. This story map explores employment in the retail trade sector in Missouri counties for the 2011-2021 period. The MCDC‘s County Business Patterns collection is the source for this data.

Missouri Census Data Center frequently works with MSDIS on mapping and data projects. MSDIS is a spatial data retrieval and archival system offering many mapping resources, primarily focused on the state of Missouri.

Story Map

Missouri Voter Turnout in General Elections Since 2000 (updated for 2024)

Our story map about Missouri voter turnout by county has been updated to include the November 2024 general election.

The Missouri Census Data Center frequently works with MSDIS on mapping and data projects. MSDIS is a spatial data retrieval and archival system offering many mapping resources, primarily focused on the state of Missouri.

ACS 2019-2023 and Other Data Updates (December 2024)

Just in time for the end of the year, we have many small and large data updates to announce. The big one, of course, is the 2019-2023 ACS five-year data collection, released just this month. MCDC uses the five-year ACS data for many products and apps, including:

In the area of population estimates, we recently added the 2010-2019 intercensal population and housing unit estimates, released in November 2024. These estimates, produced each decade by the U.S. Census Bureau’s Population Estimates Program, adjust the existing time series of postcensal estimates for a full decade to smooth the transition from one decennial census count to the next. We have SAS datasets of national files covering the nation, states, counties, places, and subcounty areas. The MCDC data collection now includes a new subdirectory (/popests/intrcensl/) devoted to these datasets.

Other recent, smaller data updates include:

Please contact the MCDC web manager with any questions or comments.

119th Congressional Districts and 2024 State Legislative Districts Now Available in Geocorr 2022

New in the Geocorr 2022 application this month: We’ve added the 119th congressional districts and 2024-vintage state legislative districts.

  • Five states (Alabama, Georgia, Louisiana, New York, and North Carolina) redrew their congressional district plans for the 119th Congress.
  • Eight states (Georgia, Minnesota, Montana, North Carolina, North Dakota, Ohio, Washington, and Wisconsin) had changes to both their upper (senate) and lower (house) state legislative districts.
  • Three states (Michigan, New York, and South Carolina) changed only their state house districts.

Also note that the Geocorr input form has been slightly redesigned to accommodate the burgeoning number of geography types. State legislative districts are now grouped under their own sub-heading.

Please report any errors to Glenn Rice (riceg@missouri.edu).