Housing Units by State: 2025 Census Rankings and Analysis

Housing units are a fundamental measure of the built environment and a leading indicator of population and economic change. According to the U.S. Census Bureau’s Vintage 2025 estimates, California leads the nation with nearly 15 million housing units as of July 1, 2025, followed by Texas, Florida, and New York. This article breaks down the latest state-level housing unit counts, rankings, and what they reveal about regional growth and housing supply.

Key Numbers

• California: 14,995,410 housing units
• Texas: 12,848,245 housing units
• Florida: 10,789,047 housing units
• New York: 8,738,856 housing units
• Top four states combined: 47,371,558 housing units
• Pennsylvania: 5,882,221 housing units
• Illinois: 5,504,295 housing units
• Ohio: 5,367,824 housing units

Explanation

A housing unit is a house, apartment, mobile home, group of rooms, or single room that is occupied or intended for occupancy as separate living quarters. The U.S. Census Bureau produces annual estimates of housing units for the nation, states, and counties as part of its Population Estimates Program. The most recent completed vintage, Vintage 2025, covers the period from April 1, 2020 to July 1, 2025 and is the most consistent set of estimates available.

State housing unit totals reflect both the existing stock and new construction, minus demolitions and conversions. They include occupied and vacant units, as well as seasonal and transitory units, but exclude group quarters such as dormitories, prisons, and nursing homes. These counts are critical for understanding housing supply, planning infrastructure, and analyzing affordability.

The distribution of housing units across states is highly uneven. The four largest states—California, Texas, Florida, and New York—together account for more than 47 million units, while many smaller states have fewer than 1 million. The South and West regions contain most of the top states, reflecting decades of population growth and construction activity.

Definition

A housing unit is defined by the Census Bureau as a house, an apartment, a mobile home, a group of rooms, or a single room that is occupied or intended for occupancy as separate living quarters. Separate living quarters are those in which the occupants live and eat separately from any other persons in the building and that have direct access from the outside or through a common hall. Group quarters, such as college dormitories, military barracks, and correctional facilities, are not counted as housing units and are reported separately.

State Comparison

The state-level housing unit counts show a clear hierarchy. California, Texas, Florida, and New York have long been the most populous states, and their housing stocks reflect that. The gap between the top state and the tenth state is substantial: California has more than three times as many housing units as Michigan, which ranks tenth. The South and West dominate the upper tier, while the Northeast and Midwest have more moderate counts. Smaller states, particularly in the Mountain West and northern New England, have far fewer units, often under 1 million.

Ranking Table

The table below shows the top 20 states by housing units as of July 1, 2025, based on U.S. Census Bureau QuickFacts data.

Largest States

The five states with the most housing units are all major population centers with large urban areas and extensive suburban development.

• California — 14,995,410 units
• Texas — 12,848,245 units
• Florida — 10,789,047 units
• New York — 8,738,856 units
• Pennsylvania — 5,882,221 units

California’s lead reflects its status as the most populous state and its long history of housing development, though its growth rate has slowed in recent years. Texas and Florida have seen rapid housing stock expansion driven by strong population inflows and construction.

Smallest States

Among the states for which QuickFacts lists values in the available chart, the smallest housing unit counts are found in less populous states, particularly in northern New England and the Mountain West. The five smallest among the listed states are:

• Maine — 771,492 units
• Idaho — 849,155 units
• West Virginia — 871,879 units
• Nebraska — 891,309 units
• New Mexico — 981,652 units

Note that the QuickFacts chart in the source is truncated and does not include all states; states such as Wyoming, Vermont, Alaska, and the Dakotas are not shown but likely have even fewer housing units. For complete data, users should download the full NST-EST2025-HU file from the Census Bureau.

Year-over-Year Change

The Census Bureau publishes annual estimates of housing unit change and state rankings for the period July 1, 2024 to July 1, 2025 in the file NST-EST2025-HU-ANNCHG. While the exact state-level changes are not summarized in the available QuickFacts chart, the South and West have generally led housing stock growth in recent years, driven by population migration and construction. The cumulative change file NST-EST2025-HU-CUMCHG tracks growth since April 1, 2020 and provides a longer view of housing stock expansion.

Methodology

The Census Bureau’s Population Estimates Program produces annual housing unit estimates for the nation, states, and counties. The Vintage 2025 series is the most recent completed vintage and consistent set of estimates, covering April 1, 2020 to July 1, 2025. Each new release revises the entire time series back to the last census to maintain consistency. The Address Count Listing Files, generated twice a year based on data from July and November, provide total housing unit counts and group quarters counts by census tabulation block for all 50 states, the District of Columbia, Puerto Rico, and the Island Areas.

Why It Matters

Housing unit counts are critical for planning infrastructure, allocating federal and state funds, analyzing housing affordability, and tracking regional growth. They help policymakers understand supply constraints, vacancy rates, and the balance between population and available housing. A growing housing stock can signal economic vitality, while a stagnant or declining stock may indicate out-migration or regulatory barriers to construction. These data are also used in formulas for distributing funds for programs such as community development and housing assistance.

Limitations of the Data

Housing unit estimates are subject to revision and may differ from decennial census counts. They include both occupied and vacant units, as well as transitory units, but group quarters are reported separately. The QuickFacts chart shown in the source is truncated and does not include all states; for complete data, users should download the full NST-EST2025-HU file. Additionally, estimates are based on administrative records and survey data, so they may not capture every new construction or demolition in real time.

Estimates are revised with each new vintage, so previously published figures for earlier years may change. Users should always reference the most recent vintage for consistent time series.

Historical Data

The Vintage 2025 estimates provide a time series from April 1, 2020 to July 1, 2025. The 2020 Census established the baseline, and annual updates reflect new construction, demolitions, and conversions. The Census Bureau revises prior years with each vintage to maintain consistency. This allows analysts to track housing stock changes over time and compare growth rates across states. The cumulative change file shows how many units have been added or lost in each state since the 2020 Census.

Factors Behind the Trend

State housing unit totals reflect long-term population growth, migration patterns, land availability, and construction activity. California and Texas have large bases due to historical growth and large urban areas. Florida’s count reflects both population and seasonal housing demand. Faster growth in the South and West is tied to domestic migration, job growth, and relatively lower costs of living in some areas. In contrast, slower growth in the Northeast and Midwest reflects more mature housing stocks and lower population growth. Policy factors such as zoning, land-use regulations, and building codes also influence the pace of new construction.

Source & Data Date

The primary source for this article is the U.S. Census Bureau, specifically the National, State, and County Housing Unit Totals: 2020-2025 page and the QuickFacts chart for the United States. The data reflect Vintage 2025 estimates as of July 1, 2025. Additional methodological details come from the Census Bureau’s Address Count Listing Files documentation. All figures are the most recent official estimates available as of the publication date.