America's affordable housing crisis is hitting older adults hardest, and from both sides. Seniors on fixed incomes are finding it harder to stay in the homes they own: harder to afford the taxes, insurance, and upkeep; harder to resist the pressure to sell; harder to find anywhere affordable to downsize to; and harder to live alone, with all the isolation that brings. Meanwhile, seniors who rent have become the fastest-growing population experiencing homelessness in the country.
Every state in America has more spare bedrooms in senior-owned homes than senior renters who cannot afford their rent. Nationally: 35 million spare bedrooms, 4.5 million cost-burdened senior renters. Nearly eight rooms for every senior in need.
Choose a view, hover over any state for a quick read, and click any state (or the squares for the small Eastern states and DC) for its full picture. State plan links verified July 2026; sources and methodology below.
TL;DR
Every state in America, and the District of Columbia, holds more spare bedrooms in senior-owned homes than it has senior renters who cannot afford their rent. Nationally the ratio is nearly eight to one: 35 million spare bedrooms against 4.5 million cost-burdened senior renters. This interactive map shows the gap state by state, ranks every jurisdiction from the tightest gap (#1) to the most abundant (#51), and pairs the housing data with each state's aging policy status. The constraint is not supply. It is the infrastructure to connect the people who have rooms with the people who need them.
What the Map Shows
- More rooms than renters. Even the tightest jurisdiction in the country has more capacity than need.
- Connection, not construction. When capacity outruns need everywhere, the question is not how to build more senior housing. It is why the existing housing is not reaching the people who need it.
- Rank measures pressure, not virtue. Every state is ranked by spare bedrooms in senior-owned homes per cost-burdened senior renter. A tight gap means connection infrastructure matters most urgently; an abundant one means a small number of connections could resolve a large share of the state's senior rental need.
Why Seniors?
- They hold the supply. Senior-owned homes hold 35 million spare bedrooms, the deepest pool of the nation's spare-room capacity (roughly 44 million U.S. homes contain at least one spare bedroom). No other group holds more untapped housing supply.
- They want to stay. Three-quarters of adults over 65 want to age in the home they already live in, and no one has stronger reasons to make a spare room work: income, help around the house, and company.
- They are the need. By 2030, more than one in five Americans will be 65 or older. Older renters are already the fastest-growing population experiencing homelessness, and the demographics guarantee those numbers grow.
Seniors Can House Seniors
The crisis has two sides, and seniors are on both of them. Nationally, 4.5 million senior renters pay more than 30 percent of their income in rent. Alongside them, 7.7 million senior homeowners, about one in four, pay more than they can afford to keep the homes they own. That is 12.2 million senior households paying more for housing than they can manage, and the two groups are each other's solution. The homeowner struggling with taxes, insurance, and upkeep holds the room. The renter struggling with rent needs it. One match stabilizes both.
The economics hold on every side of the arrangement. The home seeker pays below-market rent; on the platform, seekers save an average of $700 a month compared to market rate. The homeowner earns income that pushes back directly against the costs burdening one in four of her peers. And both gain something no subsidy provides: company. Ninety-six percent of home sharers report feeling less lonely after a match, and 80 percent of matches are still stably housed six months in.
A home sharing match asks taxpayers for neither figure. It runs on rent the two parties set themselves, inside a home that already exists. Housing every cost-burdened senior renter in America would take about 13 percent of the spare bedrooms seniors already own.
Who This Map Is For
This map was built for the people working on this crisis: aging and housing leaders, researchers, and anyone trying to solve it in the immediate term rather than years from now. It shows, state by state, how much housing supply already exists in the form of spare bedrooms in senior-owned homes, and puts that capacity beside the data needed to evaluate home sharing at scale as a viable, cost-effective response.
New construction, and even ADUs, cannot reach either group in time. Home sharing can. It opens housing supply that already exists, inside homes seniors already own, and every match stabilizes two households at once: income for the homeowner who wants to stay, an affordable home for the renter who needs one, and companionship for both.
The engagement is already on record. More than 85,000 people have joined the platform since it first came to market as Silvernest. The product became HomeShare Online in 2024, and more than 28,000 people across all 50 states and DC have enrolled to find shared housing. Home sharing is not a new concept awaiting proof. It is a proven intervention awaiting infrastructure.
The policy groundwork is further along than most people expect. Four states name home sharing in their current State Plan on Aging (New Hampshire, New Jersey, New York, Pennsylvania). Four more name it in their broader aging strategy (Maryland, Minnesota, Vermont, Tennessee). Pennsylvania has run its SHARE shared-housing program through Area Agencies on Aging for years, Maine put a statewide home share pilot into law, and more than a dozen states have adopted or are developing a Multisector Plan for Aging where home sharing can be named. Each state card links to the plan itself.
For the argument behind the data, see our companion research: Home Sharing: The Missing Link Between Aging and Housing Policy, on home sharing as preventive aging infrastructure and what its absence costs states, and Before the Move, on the years when housing pressure compounds before a forced transition.
The Data, State by State.
Ten states shown; expand for all 51. Click any column header to sort, or click a row to load that state on the map above. Each column, in brief:
- Gap rank: the pressure order. #1 has the fewest spare bedrooms per senior renter in need.
- Rooms per renter in need: spare bedrooms in senior-owned homes per cost-burdened senior renter, the heart of the dataset.
- Spare bedrooms: the existing capacity inside senior-owned homes.
- Cost-burdened senior renters: renters 65 and older paying more than 30 percent of income in rent.
- Cost-burdened senior homeowners: homeowners 65 and older paying more than 30 percent of income for housing costs. Both sides of the senior cost burden; not part of the gap ratio.
- Affordable homes per 100: what the rental market offers the lowest-income households. No state reaches even 75.
Sources: U.S. Census Bureau, ACS 2023 1-Year PUMS (supply and need) and Table B25093 (homeowner cost burden); NLIHC, The Gap, March 2026 (affordable supply). Full definitions and methodology below. Download the table sorted alphabetically or sorted by gap rank.
Definitions
The gap. The ratio between a state's spare bedrooms in senior-owned homes and its cost-burdened senior renters: how many rooms of existing capacity the state holds for every senior who cannot afford the rent she is paying now. Every state's ratio is above one; the national figure is 7.8 to one. The gap is a measure of connection failure, not scarcity.
Gap rank. States ordered by that ratio. #1 (District of Columbia) has the fewest spare rooms per senior renter in need, the tightest gap; #51 (Wyoming) has the most, nearly 20 to one. The rank measures pressure, not virtue: a tight gap means connection infrastructure matters most urgently, and an abundant one means a small number of connections could resolve a large share of the state's senior rental need.
Spare bedroom. In an owner-occupied home with a householder aged 65 or older: total bedrooms minus household members, floored at zero. A spare bedroom means possible capacity inside an occupied home, not proof that a room sits empty; some serve as offices, guest rooms, or storage. The measure deliberately excludes vacant homes, second homes, and seasonal homes.
Cost-burdened. Paying more than 30 percent of household income in gross rent, the standard federal affordability threshold. Severely cost-burdened (above 50 percent) households are included in the count. Households paying no cash rent are not counted as burdened. For homeowners, the same 30 percent threshold is applied to selected monthly owner costs: mortgage payments, property taxes, insurance, utilities, and any HOA or similar fees.
Affordable and available. NLIHC's measure: rental homes that are both affordable to extremely low-income households (income at or below the poverty guideline or 30 percent of area median income) and not already occupied by a higher-income household. No state reaches even 75 such homes per 100 extremely low-income renter households.
Why only seniors? Seniors hold the largest inventory of spare bedrooms, have the strongest desire and incentive to age in place, and are, demographically, the largest and fastest-growing population needing housing support. A senior-to-senior match stabilizes both households at once, with income, stability, and companionship flowing to both sides, and it can be delivered through the aging network (state units on aging, Area Agencies on Aging, and their partners) that already serves both people. Seniors helping seniors is not a slogan; it is the operating model this data describes.
Sources & Methodology
Need (seniors struggling to afford rent). U.S. Census Bureau, American Community Survey 2023 1-Year PUMS. Universe: renter-occupied households with a householder aged 65 or older. Cost-burdened means gross rent above 30 percent of household income; households paying no cash rent are not counted as burdened. Weighted by household weight (WGTP).
Spare bedrooms in senior-owned homes. ACS 2023 1-Year PUMS. Universe: owner-occupied households with a householder aged 65 or older. Spare bedrooms are computed as bedrooms minus household members, floored at zero, summed across households. A spare bedroom means possible capacity inside an occupied home, not proof that a room sits empty; some serve as offices, guest rooms, or storage. State totals were validated against ACS table B25007 within approximately 7 percent.
Senior homeowner cost burden. ACS 2023 1-Year, Table B25093, retrieved from data.census.gov July 2026. Universe: owner-occupied households with a householder aged 65 or older. Cost-burdened means selected monthly owner costs above 30 percent of household income (the 30.0 to 34.9 percent and 35 percent or more brackets combined). Shown on the state cards and in the table to put both sides of the senior cost burden side by side; it does not enter the gap ratio or the rank.
Affordable rental supply. National Low Income Housing Coalition, The Gap: A Shortage of Affordable Homes (March 2026), Appendix A. Affordable and available rental homes per 100 extremely low-income renter households, all ages. About one-third of extremely low-income renters are seniors.
HomeShare Online sign-ups. HomeShare Online platform enrollment records, standardized to U.S. states and DC. Sign-ups counted here are people who created a profile as a home provider or a home seeker to pursue home sharing; more than 28,000 across the 50 states and DC. The platform first came to market as Silvernest and became HomeShare Online in 2024; more than 85,000 people have joined since its first launch.
Taxpayer cost figures. The $14,000 per year voucher figure is the HUD Housing Choice Voucher program's average annual subsidy per household. The $35,000+ per year figure for an older adult who falls out of housing draws on National Alliance to End Homelessness cost estimates for unsheltered homelessness (emergency services, shelter, and health care). Platform outcome figures ($700 average monthly savings, 80 percent six-month housing stability, 96 percent reporting reduced loneliness) are HomeShare Online program measurements.
State aging policy. HomeShare Online 50-state policy scan (June 2026), compiled from state aging plans, executive orders, legislative records, and agency announcements. Every State Plan on Aging link on the cards was individually verified in July 2026. Plans expiring September 30, 2026 have successors in draft in several states; links will be refreshed as new plans are adopted.
| Source | Used for |
|---|---|
| ACS 2023 1-Year PUMS | Senior renter cost burden; spare bedrooms in senior-owned homes. |
| ACS 2023 1-Year, B25093 | Senior homeowners paying more than 30 percent of income for housing. |
| NLIHC, The Gap (2026) | Affordable and available homes per 100 extremely low-income renters. |
| HomeShare Online | Platform sign-ups by state. |
| State Plans on Aging | Policy status and plan links, verified July 2026. |
| HUD; Natl. Alliance to End Homelessness | Voucher subsidy and homelessness cost figures in the economics section. |
| John Burns Research & Consulting | National context: roughly 44 million U.S. homes contain at least one spare bedroom. |
| U.S. Census Bureau (us-atlas) | Map geometry, Albers USA projection. |
Cite This Paper
HomeShare Online. (2026). The Rooms Already Exist: America's Senior Housing Gap, State by State. https://homeshareoregon.org/research/rooms-already-exist/
About HomeShare Online
HomeShare Online publishes this paper as students of aging, housing, and community infrastructure. We operate one of many possible interventions in the missing middle. We believe the most useful contribution we can make to the larger field is to add a frame and a research agenda, rather than to argue for our particular role within it.
If you are working on related questions, we would like to hear from you. Email the executive director at executivedirector@homeshareoregon.org.