American Community Survey (ACS)

The American Community Survey (ACS) is a continuous survey conducted by the U.S. Census Bureau, designed to provide a comprehensive and detailed picture of the American population. It goes far beyond the simple headcount of the decennial census, delving into the demographic, social, economic, and housing characteristics of the population. Unlike the census, which happens once every ten years, the ACS collects data on an ongoing basis, surveying a sample of households across the nation each year. This allows for the generation of timely estimates, ensuring that decision-makers have access to up-to-date information.

One of the strengths of the ACS is its ability to provide data at various geographic levels. It offers estimates for the nation as a whole, as well as for states, counties, cities, and even smaller neighborhoods. This granular level of detail makes the ACS an invaluable resource for a wide range of stakeholders.

The ACS produces both 1-year and 5-year estimates. The 1-year estimates offer the most current data, particularly useful for understanding rapidly changing communities. The 5-year estimates, based on a larger sample size, provide greater statistical reliability and are especially valuable for smaller geographic areas or for analyzing less common characteristics.

The ACS plays a critical role in understanding the dynamic and diverse U.S. population. Its rich and timely data informs a wide range of crucial decisions, such as allocating funding for schools and infrastructure to planning for future growth and development. The ACS is an essential tool for addressing the needs of the American people and building a stronger future for all.