	Housing Unit	Reasons for Noninterviews
Year	Response Rate	Refusal	Unable to Locate	No One Home	Temporarily Absent	Language Problem	Insufficient Data	Contact Attempts Halted	Other
2025	74.3	9.1	0.1	1.5	0.1	0.2	0.8	3.0	10.9
2024	82.9	9.5	0.1	1.7	0.1	0.3	0.8	3.6	1.1
2023	84.7	8.9	0.1	1.9	0.1	0.3	0.7	2.1	1.2
2022	84.4	9.0	0.1	1.8	0.1	0.2	0.7	1.0	2.7
2021	85.3	8.6	0.1	1.9	0.1	0.2	0.7	1.3	1.7
2020	71.2	8.0	0.2	1.7	0.1	0.2	0.4	1.3	16.9
2019	86.0	4.7	0.1	1.2	0.1	0.2	0.5	1.1	6.1
2018	92.0	3.8	0.1	1.2	0.1	0.1	0.4	0.9	1.4
2017	93.7	2.7	0.0	0.9	0.1	0.1	0.4	1.1	0.9
2016	94.7	2.1	0.0	0.9	0.1	0.1	0.3	1.1	0.7
2015	95.8	2.0	0.0	0.9	0.1	0.1	0.3	N/A	0.8
2014	96.7	1.6	0.0	0.7	0.1	0.0	0.3	N/A	0.6
2013	89.9	1.3	0.0	0.6	0.1	0.0	0.2	N/A	7.9
2012	97.3	1.2	0.0	0.6	0.1	0.0	0.2	N/A	0.5
2011	97.6	1.1	0.0	0.6	0.1	0.0	0.2	N/A	0.4
2010	97.5	1.1	0.0	0.6	0.1	0.0	0.2	N/A	0.4
2009	98.0	0.8	0.0	0.6	0.1	0.0	0.2	N/A	0.3
2008	97.9	0.8	0.0	0.6	0.1	0.0	0.2	N/A	0.3
2007	97.7	0.9	0.2	0.5	0.1	0.0	0.4	N/A	0.2
2006	97.5	1.0	0.3	0.5	0.1	0.0	0.4	N/A	0.3
2005	97.3	1.0	0.4	0.5	0.1	0.0	0.3	N/A	0.3
2004	93.1	1.0	0.3	0.5	0.1	0.0	0.4	N/A	4.7
2003	96.7	1.7	0.3	0.6	0.1	0.0	0.3	N/A	0.2
2002	97.7	1.0	0.0	0.5	0.1	0.0	0.4	N/A	0.2
2001	96.7	1.3	0.0	0.7	0.1	0.0	0.7	N/A	0.4
2000	95.1	1.7	0.0	1.1	0.2	0.1	1.0	N/A	0.8

Response Rates and Reasons for Noninterviews (in percent) — Group Quarters

	Group Quarters (Person)	Reasons for Noninterviews
Year	Response Rate	GQ Person Refusal	Unable to Locate GQ Person	Resident Temporarily Absent	Language Problem	Insufficient Data	GQ Person Other	Whole GQ Refusal	Whole GQ Other
2025	63.5	5.7	0.4	0.3	0.0	1.0	4.7	7.9	16.5
2024	80.6	5.7	0.5	0.3	0.0	0.7	3.9	6.6	1.8
2023	84.3	4.2	0.6	0.3	0.0	0.6	2.8	5.0	2.2
2022	81.2	3.8	0.9	0.2	0.0	0.5	3.8	5.0	4.5
2021	74.8	2.8	0.5	0.2	0.0	0.4	3.2	4.5	13.7
2020	47.2	1.0	0.3	0.1	0.0	0.1	16.6	2.6	32.2
2019	90.9	1.8	0.3	0.1	0.0	0.2	3.2	1.8	1.7
2018	91.4	1.9	0.3	0.1	0.0	0.1	1.9	1.9	2.3
2017	94.7	1.5	0.2	0.1	0.0	0.2	1.2	1.2	0.8
2016	95.7	1.2	0.3	0.2	0.0	0.2	0.9	1.0	0.5
2015	95.3	1.3	0.2	0.1	0.0	0.2	1.5	0.9	0.6
2014	95.9	1.2	0.3	0.1	0.0	0.1	1.0	0.9	0.5
2013	95.2	1.1	0.2	0.1	0.0	0.1	1.6	0.7	0.9
2012	95.1	0.9	0.2	0.1	0.0	0.1	2.2	0.7	0.8
2011	96.9	0.8	0.2	0.1	0.0	0.1	0.7	0.4	0.8
2010	97.6	0.9	0.2	0.1	0.0	0.2	0.4	0.1	0.5
2009	98.0	0.9	0.1	0.1	0.0	0.1	0.4	0.1	0.3
2008	98.0	0.5	0.1	0.1	0.0	0.1	1.0	0.2	0.0
2007	97.8	0.4	0.2	0.1	0.0	0.0	1.2	0.3	0.0
2006	97.4	0.8	0.2	0.1	0.0	0.1	0.6	0.5	0.2

Note: The lapse in appropriations in October and November 2025 caused a suspension of ACS data collection activities, and a decrease in both the housing unit and group quarters response rates for 2025. The drop in the 2025 housing unit response rate at the national level was about 8 percentage points. For more information, see the user note.

Note: The effects of the pandemic on ACS activities in 2020 resulted in lower response rates than a typical year. For more information, see the Analytic Report. Additionally for 2020, a small number of vacant housing unit addresses that had been originally coded as non-interviews were converted to vacant units through a modeling process in order to improve ACS estimates. These were counted as non-interviews when calculating the response rates. For more information, see the user note.

Note: As a result of the 2018-2019 lapse in appropriations, the ACS did not conduct the person followup operation for the November 2018 housing unit panel, which was scheduled to occur in January 2019. This caused a drop in the 2019 housing unit response rate at the national level of about 4 percentage points.

Note: Hurricanes caused a disruption of data collection activities from September through December of 2017 in Puerto Rico. Similar disruptions, but for shorter periods of time, caused smaller impacts in Florida and Texas. These disruptions resulted in lower response and higher non-response rates in these areas for 2017. For more information, see https://www.census.gov/programs-surveys/acs/technical-documentation/user-notes/2018-02.html .

Note: As a result of the 2013 lapse in appropriations, the ACS did not have a second mailing, a telephone followup, or a person followup operation for the October 2013 housing unit panel. Only respondents from the first mailing (Internet in the United States, paper questionnaire in Puerto Rico) contribute to the overall response for this panel. This caused a drop in the annual housing unit response rate of about 7 percentage points. If we exclude the October panel from the calculation, the annual housing unit response rate rises to 97.1%. Similarly, due to a reduction in funding in 2004, the telephone and personal visit followup operations for the January 2004 panel were dropped, which resulted in a comparable effect on the overall 2004 response rate.

Response Rates

United States

Response Rates and Reasons for Noninterviews (in percent) — Housing Units

Response Rates and Reasons for Noninterviews (in percent) — Group Quarters