Map of Fairfield Co. Flood Hazard & Stream Conditions

March 1, 2025
From the Fairfield County Auditor’s Office

The March 2026 Maps of the Month are titled “A Decade of Water: Flood Hazard (2012) & Stream Conditions (2022) in Fairfield County, Ohio.” This map highlights FEMA flood hazard areas alongside the county’s stream network, providing a visual comparison of flood risk and surface water conditions over time. The map also includes public safety information emphasizing flood awareness, preparedness, and the importance of monitoring changing precipitation and stream conditions in Fairfield County. A pdf version of the map is available at the Fairfield County Auditor’s website.

Thank you, Bobby Fagrell, for creating these maps!

Fairfield County Flood Hazard Map (2012)

Flooding is dangerous, but many injuries and deaths can be prevented by staying informed and acting early. Monitor weather updates, know flood-prone areas, prepare an emergency plan and kit, and be ready to evacuate before flooding begins. During and after a flood, move to higher ground, follow official warnings, avoid floodwaters and closed roads, and wait for the all-clear before returning. Even shallow moving water is deadly, six inches can knock you down, 12 inches can move a car, so always remember: Turn Around, Don’t Drown. {FEMA Flood Hazard Areas are under Regional Planning Commission Jurisdiction}

Fairfield County Stream Conditions (2022)

Fairfield County, Ohio is home to approximately 36-37 named streams, including creeks, runs, forks, and other flowing watercourses, identified with regional geographic databases.

In Lancaster, March precipitation patterns indicate a seasonal transition toward increased rainfall. The probability of a wet day (≥0.04 inches) rises from 26% to 33% throughout the month. Rain-only events increase from 19% to 32% while mixed precipitation and snowfall probabilities decline to near zero. Average 31-day accumulated rainfall increases from approximately 2.0 to 2.8 inches, reflecting a measurable upward trend in surface water input and stream flow contribution.