Coronavirus: Which ZIP codes have most cases in Warren County?

Posted at 5:50 PM, Nov 26, 2020
and last updated 2020-11-26 17:50:33-05

The Mason area has the most coronavirus cases in Warren County, according to an interactive map of COVID-19 data by ZIP code and reported by the Journal-News.

Warren County, which has reported 8,415 cases since the pandemic began, on Wednesday was among 11 counties placed on the watch list for the highest alert level, or purple, on the color-coded Ohio Public Health Advisory System. It will be elevated next week to purple — which means “severe exposure and spread” of the virus — if conditions don’t improve.

The county also has reported a cumulative 76 deaths and 378 hospitalizations related to the coronavirus, the Ohio Department of Health reported Wednesday. Thursday’s daily numbers will be reported Friday due to the Thanksgiving holiday.

Warren Co COVID map Nov 2020.jpg
COVID-19 cases mapped in Warren County.

Although the county as a whole is experiencing a surge in cases, some areas have been hit harder than others since the pandemic began.

The top five ZIP codes for coronavirus cases in Warren County are: 45040 (Mason); 45036 (Lebanon); 45005 (Franklin, Carlisle); 45066 (Springboro); and 45039 (Maineville, Deerfield Twp.), according to the ODH’s ZIP code map for the county. Together these five ZIP codes account for more than 6,500 cases, more than 77% of the county’s cases.


  • Cases: 1,753
  • Population: 60,537
  • Cases per 100,000 people: 3,216.1


  • Cases: 1,481
  • Population: 39,052
  • Cases per 100,000 people: 3,874.8


  • Cases: 1,371
  • Population: 29,963
  • Cases per 100,000 people: 4,370.3


  • Cases: 1,040
  • Population: 28,117
  • Cases per 100,000 people: 4,187.5


  • Cases: 863
  • Population: 28,002
  • Cases per 100,000 people: 3,432.5

The Journal-News is a media partner of WCPO 9 News.