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Memorandum 2019.27
Component ID: #ti336163815

This memorandum documents the creation of the Early Nonresponse Followup (NRFU) universe for the 2020 Census.

The purpose of Early NRFU is to enumerate college and university students who live in off-campus housing before the end of the spring semester when they may leave for another residence. The 2020 Early NRFU operation will begin on April 9, 2020.

To create the Early NRFU universe, Census Bureau staff identified eligible schools and the geographic area surrounding each school based on certain criteria, including the school’s semester end date and the number of full-time students. Stakeholders from the regional census centers and the Federal-State Cooperative for Population Estimates reviewed and refined the Early NRFU universe based on their local knowledge and research. This work was completed in August 2019 with the Census Bureau’s quality control review of updates from stakeholders. The Early NRFU universe began the process to become part of the enumeration universe for the 2020 Census in September 2019.

The number of housing units in each state that will be eligible for Early NRFU are below.

Component ID: #ti285398299

Early NRFU Housing Units by State

State Number of Early NRFU Housing Units
Alabama 321,634
Alaska 8,675
Arizona 68,340
Arkansas 63,252
California 335,442
Colorado 92,724
Connecticut 86,550
Delaware 18,804
Washington, D.C. 66,518
Florida 256,415
Georgia 356,550
Hawaii 17,223
Idaho 25,881
Illinois 248,529
Indiana 105,119
Iowa 87,559
Kansas 55,457
Kentucky 148,308
Louisiana 205,864
Maine 52,530
Maryland 148,253
Massachusetts 402,196
Michigan 173,943
Minnesota 97,048
Mississippi 91,383
Missouri 129,402
Montana 17,595
Nebraska 41,668
Nevada 23,539
New Hampshire 25,434
New Jersey 368,122
New Mexico 28,633
New York 771,569
North Carolina 293,709
North Dakota 28,993
Ohio 287,631
Oklahoma 65,093
Oregon 30,472
Pennsylvania 421,310
Rhode Island 57,233
South Carolina 236,416
South Dakota 21,013
Tennessee 109,223
Texas 354,010
Utah 62,175
Vermont 24,705
Virginia 163,865
Washington 38,032
West Virginia 58,108
Wisconsin 214,547
Wyoming 8,717
Puerto Rico 40,395
Total 7,455,806


The geographic areas that will be enumerated during Early NRFU may also be viewed on a map, which can be accessed at

Component ID: #ti751036930

The 2020 Census Memorandum Series

The 2020 Census Memorandum Series documents significant decisions, actions, and accomplishments of the 2020 Census Program for the purpose of informing stakeholders, coordinating interdivisional efforts, and documenting important historical changes.

A memorandum generally will be added to this series for any decision or documentation that meets the following criteria:

  1. A major program level decision that will affect the overall design or have significant effect on 2020 Census operations or systems.
  2. A major policy decision or change that will affect the overall design or significantly impact 2020 Census operations or systems.
  3. A report that documents the research and testing for 2020 Census operations or systems.

Visit to access the Memorandum Series, the 2020 Census Operational Plan, and other information about preparations for the 2020 Census.

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