Jefferson County, Missouri

07/10/2026

Severe weather & flash flooding possible in and across the region tonight

07/09/2026

For road conditions and work zone information, check the Gateway Guide website at https://www.modot.org/gatewayguide. Report a road concern to MoDOT 24/7 online or by calling our toll-free number: 1-888-ASK-MoDOT.

07/08/2026

Jefferson County, Missouri Government is now hiring for the following positions:
• Veterinary Technician (Animal Control)
• Code Enforcement Manager (Code Enforcement)
• Case Support Specialist (Juvenile)
• Driver/Laborer I & II (Public Works)

Explore current openings and apply online today.
https://jeffcomo.gov/173/Human-Resources

07/07/2026

This is a great opportunity to recycle old electronics and appliances responsibly.

Clean out the garage, basement, or office and bring unwanted items to the Electronics & Recycling Collection Event on Saturday, July 11, from 10 a.m. to 1 p.m. at Byrnes Mill City Hall.

See the flyer below for accepted items and event details.

Join us on July 11th at Byrnes Mill City Hall

07/02/2026

Jefferson County, Missouri Government offices will be closed on Friday, July 3, 2026, in observance of Independence Day. Regular business hours will resume on Monday, July 6, 2026.

07/02/2026

Issue 13 July - September 2026 Jefferson County, Missouri Newsletter has been published.
Check it out here: https://www.jeffcomo.gov/ArchiveCenter/ViewFile/Item/396

View current and past newsletters here:
https://www.jeffcomo.gov/Archive.aspx?AMID=43

Visit our notifications page, https://jeffcomo.org/list.aspx , where you can sign up to receive texts and/or emails of the newsletter as soon as it is published.

07/02/2026

👟🇺🇸 Registration is NOW OPEN for the annual Big River Run! Join us on Sunday, September 20, 2026, for a patriotic 5K or 10-Mile race as we celebrate America's 250th birthday and one of Jefferson County's favorite running traditions.

🏅 Every participant will receive a race medal, and those who register by August 25 are guaranteed a race shirt!

❤️🤍💙 Register today and celebrate 250 years of America with us at the starting line!

https://raceroster.com/events/2026/139058/the-big-river-run

07/02/2026

07/01/2026

Extreme heat can be dangerous, especially during the hottest days of summer.

Staying cool, drinking plenty of water, and taking breaks from the heat are important ways to protect your health.

Cooling centers offer a safe, air-conditioned place to cool off when temperatures become too high.

The following locations are available throughout Jefferson County.
https://experience.arcgis.com/experience/1139cabb927b4395b75434a3cde4bfe1/page/Map