American Community Survey 1-Year Data (2005-2024)

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American Community Survey 1-Year Data (2005-2024)

The American Community Survey (ACS) is an ongoing survey that provides data every year—giving communities the current information they need to make important decisions. The ACS covers a broad range of topics about social, economic, housing, and demographic characteristics of the U.S. population. 

The ACS 1-year estimates are available for the nation, all states, the District of Columbia, Puerto Rico, all congressional districts and metropolitan statistical areas, and all counties and places (i.e., towns or cities) with populations of 65,000 or more.

  • Detailed Tables contain the most detailed estimates on all topics for all geographies. The data are presented as estimates.
  • Subject Tables provide a span of information on a particular ACS subject presented in the format of both estimates and percentages.
  • Data Profiles contain broad social, economic, housing, and demographic information. The data are presented as estimates and percentages.
  • Comparison Profiles are similar to Data Profiles but also include comparisons with past-year data. The current year data are compared with each of the last four years of data and include statistical significance testing.
  • Selected Population Profiles provide broad statistics for population subgroups by race, ethnicity, ancestry, tribal affiliation, and place of birth. The data are presented as estimates and percentages.

To create an API call, you must enter a specific URL into the address bar of a web browser. The call will vary depending on the following factors:

  • Year of data release

  • Dataset (ACS 1-year or 5-year) 

  • Table ID

  • Geography level

Please review the example API calls for each of the table types listed below and use those examples to build your API calls.  API calls are also available for tables found in data.census.gov by selecting the API function in the tool bar.  Visit the API Resources page for tutorial videos, workshops and other tools.

The API is one of several ways to access ACS data. Visit the ACS Data page to find all the ways to access ACS data.

2014
  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005

2014

Variable Changes

Variables, and the values they represent, may change over time. If you have used variables in prior year releases, check the ACS product changes webpage for source table changes. If the variable you have been using comes from a table that has changed from the prior year, check the variables list (variables.html) and compare the variable concept and label to be sure you are requesting the correct estimate. For information on these changes, visit:

All queries to the Census Data API now require an API key. Please cut and paste the Example Calls below into your web browser and replace YOUR_KEY_GOES_HERE with your personal API Key. 

If you do not have an API Key, request one here.

Detail Tables

  • Example Call: api.census.gov/data/2014/acs/acs1?get=NAME,B01001_001E&for=state:*&key=YOUR_KEY_GOES_HERE
  • 2014 ACS Detail Tables Variables [ html | xml | json ]
  • ACS Technical Documentation
  • Examples and Supported Geography

Subject Tables

  • Example Call: api.census.gov/data/2014/acs/acs1/subject?get=NAME,S0101_C01_001E&for=state:*&key=YOUR_KEY_GOES_HERE
  • 2014 ACS Subject Tables Variables [ html | xml | json ]
  • ACS Technical Documentation
  • Examples and Supported Geography

Data Profile

  • Example Call: api.census.gov/data/2014/acs/acs1/profile?get=DP02_0001PE&for=state:*&key=YOUR_KEY_GOES_HERE
  • 2014 ACS Data Profile Variables [ html | xml | json ]
  • ACS Technical Documentation
  • Examples and Supported Geography

Comparison Profile

  • Example Call: api.census.gov/data/2014/acs/
    acs1/cprofile?get=CP05_2014_001E&for=state:*&key=YOUR_KEY_GOES_HERE
  • 2014 ACS Comparison Profile Variables [ html | xml | json ]
  • ACS Technical Documentation
  • Examples and Supported Geography

Selected Population Profiles

  • Example Call: api.census.gov/data/2014/acs/acs1/spp?get=NAME,group(S0201)&for=us:1&POPGROUP=001&key=YOUR_KEY_GOES_HERE
  • 2014 ACS Selected Population Profiles Variables [ html | xml | json ]
  • ACS Technical Documentation
  • Examples and Supported Geography

Related Information

Page Last Revised - May 12, 2026