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July 19, 2021
Amy Rose

Harris County Vaccine Distribution April- July

With the spread of COVID-19 across the United States starting in early 2020, health entities across the country have tracked testing for the virus, number of confirmed positive cases, deaths related to the virus, and now, the distribution of the vaccines. Since February 2021, the Harris County Commissioners Court’s Analyst’s Office has produced a monthly report tracking the distribution and administration of COVID-19 vaccinations in Harris County.

Vaccination Rates by Zip Code

As of July 5, 2021, 41.9% (1,975,622) of Harris County residents were fully vaccinated—and 51.3% of Harris County’s eligible population, individuals age 12 and older. But the distribution of vaccines to residents across Harris County vary greatly from zip code to zip code.

This analysis shows the number of individuals per 100,000 residents who are fully vaccinated by zip code. The distribution of vaccines is presented per 100,000 residents rather than as a raw number of people fully vaccinated by zip code to account for the wide variation in the number of residents per zip code in Harris County (from as few as 862 residents in zip code 77010 to as many as 122,814 residents in zip code 77449 residents).

For each zip code, the following metrics are also reported for context: median income, Social Vulnerability Index (SVI) score, and total COVID-19 related deaths. 

Social Vulnerability by Zip Code

Social vulnerability describes a community’s ability to weather a disaster, natural (such as a hurricane or disease outbreak) or human-made, and prevent human suffering and financial loss in the event of disaster. Social vulnerability scores, developed by the US Centers for Disease Control and Prevention considering poverty, access to transportation, and housing, help leaders and policymakers better understand the anticipated impact of a disaster.

SVI rankings are based on percentiles ranging from 0 to 1 (with higher values indicating greater vulnerability). SVI data is often presented using quartile classification. This analysis utilizes CDC’s SVI classifications as follows: 0-0.25 (lowest vulnerability); 0.25- 0.5 (moderate low); 0.50-0.75 (moderate high); and 0.75-1 (highest vulnerability).

How to Read the Data Viz

The orange circles on the map below represent the 15 zip codes with the fewest number of fully vaccinated people per 100,000 residents. Zip code 77013, which includes the Dorado and Northshore neighborhoods in Northeast Houston, has the fewest number of individuals per 100,000 residents fully vaccinated (25,779 per 100,000 residents). The median income for the zip code 70013 is $38,665, and the social vulnerability index score is 0.98 (the highest SVI score of the zip codes analyzed, and just two points away from the highest vulnerability score, 1).

The green circles on the map below represent the 15 zip codes with the greatest number of fully vaccinated people per 100,000 residents. Zip code 77027, which includes the Houston’s River Oaks neighborhood, has the greatest number of individuals per 100,000 residents fully vaccinated (99,163 per 100,000 residents). The median income for zip code 77027 is $98,463, and the SVI is 0.01 (the highest SVI score of the zip codes analyzed, and just one point away from the lowest vulnerability score, 0).

Map Instructions: Select the Individuals Vaccinated by Month to view by zip code the number of individuals vaccinated per 100,000 residents, deaths, income, and SVI for that month. The Search By Zip Code function allows the user to search specific zip codes for the selected month. 

Source: American Community Survey (ACS) 2018 5-year estimates downloaded from Harris County’s Applied Technologies Location Analysis and Statistics (ATLAS), Centers for Disease Control (CDC), and Harris County Public Health (HCPH).

Note: Assumes Harris County’s total population of 4,713,325, per American Community Survey 2019, 1 Year Estimates. Eligible individuals include individuals ages 12 and over, this population is estimated to be 3,852,215 in Harris County, per Analyst’s Office analysis of American Community Survey 2019, 1 Year Estimates.


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