State Share of U.S. GDP: How Much Each State Contributes to National Output

The United States economy is the world’s largest, with nominal output now exceeding $30 trillion. But that output is far from evenly distributed: a small number of large, economically diverse states account for an outsized share of national production. According to data from the U.S. Bureau of Economic Analysis and Moody’s Analytics, California alone contributes about 14.5% of U.S. GDP, while the four largest state economies—California, Texas, New York, and Florida—together generate more than 37% of the national total. This article breaks down how much each state contributes to U.S. GDP, which states dominate, and what the latest data show about state-level economic growth.

Key Numbers

• U.S. nominal GDP: Exceeds $30 trillion.
• California’s share: 14.5% of U.S. GDP.
• Top four states combined: California, Texas, New York, and Florida generate over 37% of national GDP.
• Five states over $1 trillion: California, Texas, New York, Florida, and Illinois each had GDP above $1 trillion in 2022, together about 41% of U.S. GDP.
• Median state share: Roughly 1% to 2% of U.S. GDP.
• Q1 2026 growth range: Washington +4.5% to South Dakota -1.6%.
• 2022 real GDP: $21.82 trillion, up 1.9% from 2021.

Explanation

Gross domestic product, or GDP, measures the total market value of all final goods and services produced within a given area over a specific period. For states, the Bureau of Economic Analysis (BEA) estimates GDP by summing the value added by each industry located in the state. A state’s share of U.S. GDP is simply that state’s current-dollar GDP divided by the national current-dollar GDP, expressed as a percentage.

State GDP shares reveal how concentrated American economic output is. While the U.S. has 50 states and the District of Columbia, a handful of large states produce a disproportionate share of goods and services. California, Texas, New York, and Florida alone account for more than one-third of national GDP. By contrast, the median state contributes only about 1% to 2%, and many smaller states contribute less than 0.5% each.

These differences reflect population size, industry mix, natural resources, and historical development. They do not necessarily indicate that residents of high-share states are better off; GDP measures production, not income distribution or quality of life. Still, state GDP shares are closely watched by policymakers, businesses, and researchers because they signal where economic activity is concentrated and how regional economies are evolving.

Definition

In official U.S. statistics, state GDP is the state-level counterpart of national GDP. It represents the value added in production by labor and capital located within a state. The BEA produces quarterly estimates of GDP by state for all 50 states and the District of Columbia, along with annual statistics. A state’s share of U.S. GDP is calculated as:

State share = (State current-dollar GDP ÷ U.S. current-dollar GDP) × 100

Because current-dollar GDP includes the effects of inflation, shares based on current dollars reflect both real output and price differences across states. For comparisons over time, the BEA also publishes real, or inflation-adjusted, GDP by state.

Current U.S. GDP

The U.S. economy now exceeds $30 trillion in nominal terms, according to data cited by Visual Capitalist from Moody’s Analytics. In real terms, U.S. GDP was $21.82 trillion in 2022, up from $21.41 trillion in 2021 and $20.23 trillion in 2020, based on USAFacts analysis of BEA data. The most recent BEA release, covering the first quarter of 2026, shows that real GDP increased in 46 states and the District of Columbia, with growth rates ranging from a 4.5% increase in Washington state to a 1.6% decrease in South Dakota.

State Comparison

The five largest state economies by GDP level in 2022 were California, Texas, New York, Florida, and Illinois, each with GDP above $1 trillion. Together, these five states contributed approximately 41% of national GDP in 2022, according to USAFacts. California’s share alone was 14.5%, based on Moody’s Analytics data. The table below lists the five largest state economies by GDP level.

Although exact individual shares for Texas, New York, Florida, and Illinois are not separately listed in the cited sources, the four largest states—California, Texas, New York, and Florida—collectively generate more than 37% of U.S. GDP.

Ranking Table

The following table summarizes the most recent available information on state GDP shares and levels. Because the BEA does not publish a single official ranking of state shares in the cited releases, the table combines the share figure for California with the combined share for the top four states and the GDP-level ranking for the top five states.

Largest States

California is by far the largest state economy, responsible for 14.5% of U.S. GDP. Its economy is diverse, spanning technology, entertainment, agriculture, manufacturing, and trade. Texas, New York, and Florida follow, and together with California they account for more than 37% of national output. Illinois is the fifth state with GDP above $1 trillion, reflecting its large manufacturing, finance, and transportation sectors. The concentration of output in these five states means that economic trends in California, Texas, New York, Florida, and Illinois can have an outsized influence on national GDP growth.

Smallest States

At the other end of the spectrum, many smaller states contribute less than 0.5% each to U.S. GDP. The smallest state economies are generally found in sparsely populated areas of the Mountain West, northern New England, and the northern Great Plains. While the cited sources do not provide a complete ranking of the smallest states by GDP share, the median state contributes only about 1% to 2% of national output, and the bottom tier of states collectively accounts for a very small fraction of U.S. GDP. Small population and limited industrial base are the main reasons for these low shares.

GDP Per Capita

A state’s share of U.S. GDP is not the same as its GDP per capita, which divides total GDP by population. Large states such as California and Texas have high total GDP partly because they have large populations. Per capita GDP can be high in states with smaller populations but high-value industries, such as energy-producing states or financial centers. The cited sources do not provide state-level GDP per capita figures, but the distinction is important: a high total GDP share does not automatically mean high output per person, and a low total share does not mean low productivity.

Historical Trend

U.S. real GDP has grown steadily in recent years, from $20.23 trillion in 2020 to $21.41 trillion in 2021—a 5.8% increase, the highest annual growth rate in 37 years—and to $21.82 trillion in 2022, a 1.9% increase. Nominal GDP surpassed $25 trillion for the first time in 2022 and has since exceeded $30 trillion. At the state level, real GDP increased in 48 states and the District of Columbia in the fourth quarter of 2024 and for the year 2024 as a whole, according to the BEA. In the first quarter of 2026, growth continued in 46 states and DC, with Washington state leading at 4.5% and South Dakota declining 1.6%.

Why It Matters

State GDP shares matter for several reasons. They help identify where economic activity is concentrated, which can influence federal funding formulas, infrastructure investment, and regional economic development policy. Businesses use state GDP data to decide where to locate or expand. Researchers and journalists use the shares to compare state economies and to track how economic power shifts over time. Large state economies can also drive national trends: a slowdown in California or Texas, for example, can noticeably affect U.S. GDP growth.

Factors Behind the Trend

Several factors explain why some states contribute much more to U.S. GDP than others. Population size is a major driver: more people generally means more workers, consumers, and production. Industry mix also matters. California benefits from technology, entertainment, and agriculture; Texas from energy, technology, and manufacturing; New York from finance and professional services; and Florida from tourism, real estate, and retirement-related industries. Natural resources, such as oil and gas in Texas and other energy states, can boost output. Historical development, infrastructure, and access to ports and trade routes further shape state economies.

Methodology

The BEA estimates GDP by state using a value-added approach: it sums the value added by each industry within a state, where value added equals output minus intermediate inputs. The estimates are based on data from surveys, administrative records, and economic censuses. State GDP is released quarterly, typically with the third estimate of U.S. GDP, and is revised as more complete data become available. Annual state GDP statistics are also published and may be revised in subsequent comprehensive updates. A state’s share of U.S. GDP is calculated by dividing the state’s current-dollar GDP by the national current-dollar GDP.

Limitations of the Data

State GDP estimates have several limitations. They are subject to revision as source data are updated, and annual series can have discontinuities when industry classifications change. Current-dollar shares can be influenced by differences in price levels across states, so real GDP shares may differ. GDP measures production within state borders, not the income of state residents, and it does not capture non-market activity, environmental quality, or income distribution. For small states, estimates may have relatively larger sampling errors. As the BEA notes:

GDP by state statistics are released with the third estimate of U.S. GDP each quarter and share the same news release.

Source & Data Date

The primary source for state GDP data is the U.S. Bureau of Economic Analysis (BEA), GDP by State program. The most recent release cited is the first quarter 2026 estimate, published June 25, 2026. Additional data come from the BEA news release for the fourth quarter 2024 and preliminary 2024, published March 28, 2025, and from USAFacts analysis of 2022 BEA data, updated December 5, 2023. Share figures for California and the top four states are based on Moody’s Analytics data as mapped by Visual Capitalist.