Heat Vulnerability Index Rankings
The Heat Vulnerability Index (HVI) shows neighborhoods whose residents are more at risk for dying during and immediately following extreme heat. It uses a statistical model to summarize the most important social and environmental factors that contribute to neighborhood heat risk. The factors included in the HVI are surface temperature, green space, access to home air conditioning, and the percentage of residents who are low-income or non-Latinx Black. Differences in these risk factors across neighborhoods are rooted in past and present racism. Neighborhoods are scored from 1 (lowest risk) to 5 (highest risk) by summing the following factors and assigning them into 5 groups (quintiles):
Median Household Income (American Community Survey 5 year estimate, 2016-2020)
Percent vegetative cover (trees, shrubs or grass) (2017 LiDAR, NYC DOITT)
Percent of population reported as Non-Hispanic Black on Census 2020
Average surface temperature Fahrenheit from ECOSSTRESS thermal imaging, August 27,2020
Percent of households reporting Air Conditioning access, Housing ad Vacancy Survey, 2017
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Freshness
The publisher's promise
How the agency that publishes this data says it keeps the data current.
Dormant
- Says it updates
- As needed
- Actually updates about every
- —
- Publisher last updated the data
- Sep 19, 2024
Our mirror
Whether our copy of this data is current with the source.
In sync
- We last synced
- Sep 19, 2024, 10:16 AM
- Rows in our copy
- 184
- Rows at the source
- 184
- Our copy trails the source by
- under a minute
Columns
Each source column, with the name and type we use to store it.
0 of 2 columns carry a concept; 2 carry a description from the publisher. Read the concept column before you join. A column with no concept carries no claim from us, and a name that looks like a key is not one.
| Source field | Display name | What the publisher says it is | Concept | Source type | Stored as | Stored type | Row identifier | Unit |
|---|---|---|---|---|---|---|---|---|
hvi | Heat Vulnerability Index (HVI) | Quintiles of heat vulnerability index, a measure of neighborhood risk of dying on extreme heat days. | Not bound | Number | hvi | numeric | — | |
zcta20 | ZIP Code Tabulation Area (ZCTA) 2020 | ZCTAs are a geographic product of the U.S. Census Bureau created to allow mapping, display, and geographic analyses of the United States Postal Service (USPS) ZIP Codes. | Not bound | Text | zcta20 | text | — |
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This file was produced on Aug 20, 2026, 9:10 AM.
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Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/4mhf-duep
- Version
- Content hash:
4f677c6a6e4fc257e90c03b36322a46099aeae80186e8641f5ced98771f045c4 - What we changed
- We did not change the data. We stored it as published.
- Publisher
- codenownyc
- We retrieved it
- Sep 19, 2024, 10:16 AM
Update history
| Started | Kind | Result | Rows written | Produced by |
|---|---|---|---|---|
| Aug 3, 2026, 3:45 AM | full_replace | success | 184 | codenow-nycmesh-container-oci.jfrog.io/codenow/citytap-pull:0.1.31 |