Affordable Housing Insights Hub
The housing data your community needs in one place
Each agency, each coalition, each funder has pieces of the data — but no single place to understand how population, housing supply, affordability, and homelessness fit together. The AHI Hub changes that. Free, open, and built for Washington State communities.
Free and publicly accessible — no account required
Every county in Washington State
Historical data for trend analysis and comparisons
Downloadable data and open API
Five views. One connected system.
The Hub is organized into five tabs. Each focuses on a different dimension of how housing conditions shape homelessness — and each connects to the others.
Population Landscape
How many households live at each income level relative to AMI — showing who is most exposed to housing cost burden in your county.
Homelessness Landscape
Homelessness trends since 2006, broken down by shelter type, household composition, chronic homelessness, and veterans — benchmarked against state and national rates.
Housing Gap
Rental supply matched against renter demand across housing budget bands — showing exactly where shortages concentrate and where surplus exists relative to what people can afford.
Housing Landscape
The full housing stock by affordability band and monthly cost, HUD Fair Market Rents by unit size, and vacancy rates broken down by tenure type.
Scenario Modeling
Test how specific housing interventions — new units, vouchers, land use changes — would affect availability over time.
Built for the people making housing decisions
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Ground proposals in a shared, transparent view of local conditions — not competing estimates from disconnected sources.
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Historical data across all tabs lets you measure whether conditions are improving — and where gaps persist year over year.
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No single dataset shows everything. The Hub connects population, supply, affordability, and homelessness so the relationships become visible.
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Every chart has a "Get this data" download. The open API lets developers and researchers integrate Hub data directly into their own tools.
The AHI Hub is built on public data sources — HUD, ACS 5-Year estimates, Point-in-Time counts, and others — standardized into a single framework so communities can actually use them together.
We believe access to this data shouldn't depend on institutional resources or technical capacity. Everything in the Hub is free to access, free to download, and available via API for anyone who wants to build on it.
Open by design
The data belongs to the community
See your county's housing system
Select any county in Washington State and explore population, homelessness, housing stock, and affordability gaps — all connected, all in one place.