Income Shift Approach for the RHNA Methodology

Map Themes

Resulting jurisdiction growth rate (relative to 2019 household level)

< 10
> 25


Bay Area Jurisdictions




Current RHNA Cycle

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Download the Total Allocation
by Jurisdiction

ABAG staff has developed this tool to support the Housing Methodology Committee as they develop an initial recommendation for a Regional Housing Needs Allocation methodology.

Regional Housing Needs Determination

RHNA Cycle 2023-2031

Income Category Housing Unit Need Percent
Very-Low 114,442 26%
Low 65,892 15%
Moderate 72,712 16%
Above-Moderate 188,130 43%
Total 441,176 100%

Potential Methodology Factors

Click here to learn more about these factors.

Percentage of a jurisdiction’s households living in census tracts labelled High Resource or Highest Resource on the TCAC/HCD Opportunity Map.

Percentage of a jurisdiction’s households living in census tracts where racial demographics differ greatly from the region and where there is a high proportion of high-income households compared to the region.

Share of region’s total jobs that can be accessed from a jurisdiction by a 30-minute auto commute.

Share of region’s total jobs that can be accessed from a jurisdiction by a 45-minute transit commute.

Total vehicle miles traveled per worker in a jurisdiction, estimated for 2020 using Plan Bay Area 2040 data.

Ratio of jobs within a jurisdiction to housing units in the jurisdiction.

Ratio of low-wage jobs (less than $3,333/month) within a jurisdiction to the number of low-cost rental units (less than $1,500/month) in the jurisdiction.

Jurisdiction’s share of the region’s forecasted jobs based on Plan Bay Area 2050..

Jurisdiction’s percentage of the region’s total acres within Transit Priority Areas.

Percentage of acres within a jurisdiction’s urbanized area in locations with low risk from natural hazards according to the Modified MTC/ABAG Multi-Hazard Index.

The income shift produces a RHNA allocation that moves jurisdictions’ income distributions closer to the regional distribution. A shift of 0% means a jurisdiction’s RHNA mirrors the jurisdiction’s existing income distribution, while a shift of 100% means a jurisdiction’s RHNA mirrors the region’s existing income distribution. For shifts over 100%, jurisdictions that have a higher percentage of existing households in a given income category compared to the region receive a share in that category lower than the region’s existing share, and vice versa. In theory, a higher income shift could close the gap between a jurisdiction’s income distribution and the region’s distribution more quickly.