Additionally, April 13 data shows seven confirmed cases of the coronavirus in the city of Tomball with 1,277 cases in unincorporated portions of Harris County, according to the latest available data April 13.
Among the six ZIP codes in the Tomball and Magnolia area, ZIP code 77377, spanning the southern Tomball area, reports the most confirmed cases—21-40 cases—locally. Harris County ZIP codes reporting the highest number of confirmed coronavirus cases totaled between 61-95 cases, according to county information.
ZIP code 77377 was home to 37,016 residents in 2018, according to the 2018 U.S. Census Bureau's American Community Survey five-year estimates, which follows ZIP code 77375 with 52,785 residents for highest population in the Tomball and Magnolia area.
Here are the case number ranges for Tomball- and Magnolia-area ZIP codes, per the latest available data April 13:
- ZIP 77447*: 1-11 confirmed cases
*This ZIP code spans Harris and Montgomery counties. One recovery from the coronavirus has been recorded in Montgomery County with a Harris County map indicating a range of 0-10 cases identified. - ZIP 77354: seven confirmed cases
This includes five active cases and two recoveries. - ZIP 77355: five confirmed cases
This includes five active cases. - ZIP 77362: one confirmed case
This includes one active case. - ZIP 77375: 11-20 cases
- ZIP 77377: 21-40 cases
However, the Houston Health Department cautioned on Twitter that the Harris County case ranges by ZIP code could show incomplete data and bias by testing site locations.
Dr. Persse's words of caution about zip code "heat" maps:
- Data is biased by testing site locations.
- There may be significant infection in neighborhoods where there appears to be little infection.
- The maps are a snapshot in time.#COVID19 #hounews @HoustonTX @HoustonOEM https://t.co/TnE99rKJYV
— Houston Health Dept (@HoustonHealth) April 13, 2020
As of the evening of April 13, confirmed cases totaled 266 cases in Montgomery County with 79 recoveries and 3,747 confirmed cases in Harris County with 642 recoveries, according to information from the two counties. To view Harris County's coronavirus cases by ZIP code map, click here.
