Each year some new entities come into existence and other entities are dissolved. This may be the result of new incorporations or statistical delineations, the redrawing or splitting of administrative areas, disincorporations, mergers and consolidations, and other types of changes.

American Indian Area/Alaska Native Area/Hawaiian Home Land Trust Lands

• Skokomish Off-Reservation Trust Land, Washington GEOID-3825T
• San Pasqual Off-Reservation Trust Land, California GEOID-3460T
• Yavapai-Apache Nation Off-Reservation Trust Land, Arizona GEOID-4708T

County Subdivision

• Rocky Run-Wilcox township, Illinois GEOID-1706765240

Census Designated Place

• Dutchtown CDP, Missouri GEOID-2920566
• Hastings CDP, Florida GEOID-1229100

Incorporated Place

• Bluff town, Utah GEOID-4906700
• Copperton metro township, Utah GEOID-4915720
• Berlin town, Alabama GEOID-0105812
• Bridgewater Town city, Massachusetts GEOID-2508130
• Carbonate town, Colorado GEOID-0812080
• Emigration Canyon metro township, Utah GEOID-4922875
• Kearns metro township, Utah GEOID-4940470
• Keene city, Kentucky GEOID-2141716
• Magna metro township, Utah GEOID-4947290
• Randolph Town city, Massachusetts GEOID-2556000
• South Fulton city, Georgia GEOID-1372122
• St. Mary city, Kentucky GEOID-2167890
• The Highlands city, Kansas GEOID-2070357
• White City metro township, Utah GEOID-4984050
• Yorkville village, Wisconsin GEOID-5589550

Elementary School District

• Holy Hill Area School District, Wisconsin GEOID-5500080

Unified School District

• Bluff Dale Independent School District, Texas GEOID-4810620
• Eagle Lake Public Schools, Maine GEOID-2314839
• East Helena K-12, Montana GEOID-3009560
• Essex-Westford Educational Community Unified School District, Vermont GEOID-5000395
• Greater Rutland County Supervisory Union, Vermont GEOID-5000405
• Holmes County Consolidated School District, Mississippi GEOID-2800195
• Lockwood K-12, Montana GEOID-3016950
• Moro Plantation Public Schools, Maine GEOID-2314836
• Mount Greylock School District, Massachusetts GEOID-2508160
• North Rock Creek Public School, Oklahoma GEOID-4021840
• Oregon Trail School District 46, Oregon GEOID-4110890
• Regional School Unit 89, Maine GEOID-2314838
• Sebago Public Schools, Maine GEOID-2314837
• Silver Falls School District 4J, Oregon GEOID-4111450
• Winona-Montgomery County Consolidated School District, Mississippi GEOID-2800196

County Subdivision

• Brady Lake village, Ohio GEOID-3913308168
• Brokaw village, Wisconsin GEOID-5507309975
• Le Sueur city, Minnesota GEOID-2710336746
• Menasha town, Wisconsin GEOID-5513950850
• Oxbow plantation, Maine GEOID-2300356205
• Randolph town, Massachusetts GEOID-2502155955
• Rocky Run township, Illinois GEOID-1706765234
• Sherrill city, New York GEOID-3606566993
• Wilcox township, Illinois GEOID-1706781607
• Williamstown town, Wisconsin GEOID-5502787225

Census Designated Place

• Bluff CDP, Utah GEOID-4906700
  
• Bluffview CDP, Wisconsin GEOID-5508560
• Bridgewater CDP, Massachusetts GEOID-2508050
• Copperton CDP, Utah GEOID-4915720
• Emigration Canyon CD, Utah GEOID-4922875
• Kearns CDP, Utah GEOID-4940470
• Magna CDP, Utah GEOID-4947290
• Midvale CDP, Montana GEOID-3049400
• Randolph CDP, Massachusetts GEOID-2555990
• Southfield CDP, Massachusetts GEOID-2563840
• White City CDP, Utah GEOID-4984050

Incorporated Place

• Brokaw village, Wisconsin GEOID-5509975
  
• Dutchtown Village, Missouri GEOID-2920566
• Dycusburg city, Kentucky GEOID-2123140
• Hastings town, Florida GEOID-1229100 *Hastings town Incorporated Place dissolved and not spatially similar or comparable to Hastings CDP.
• Lake Mykee Town village, Missouri GEOID-2939990
• Mackenzie village, Missouri GEOID-2945110

Elementary School District

• Adams Public School District 128, North Dakota GEOID-3801680
• Bluff Dale Independent School District, Texas GEOID-4810620
• Chittenden Central Supervisory Union in Essex Junction (PK-8), Vermont GEOID-5050004
• East Helena Elementary School District, Montana GEOID-3009560
• Essex Town School District, Vermont GEOID-5003840
• Friess Lake School District, Wisconsin GEOID-5512880
• Lanesborough School District, Massachusetts GEOID-2506630
• Lockwood Elementary School District, Montana GEOID-3016950
• North Rock Creek Public School, Oklahoma GEOID-4021840
• Richfield Joint No. 1 School District, Wisconsin GEOID-5512900
• Springdale Elementary School District, Montana GEOID-3024780
• Williamstown School District, Massachusetts GEOID-2513020
• Winfield Independent School District, Texas GEOID-4846110

Secondary School District

• Essex Community Education Center, Vermont GEOID-5000006
  
• Mount Greylock School District, Massachusetts GEOID-2508160
• Mount Pleasant Independent School District (9-12) in Winfield, Texas GEOID-4848449
• Stephenville Independent School District (9-12) in Bluff Dale, Texas GEOID-4848143

Unified School District

• Aurelia Community School District, Iowa GEOID-1904020
  
• Battle Creek-Ida Grove Community School District, Iowa GEOID-1904320
• Blue Mountain Union School District 21, Vermont GEOID-5008224
• Chittenden Central Supervisory Union, Vermont GEOID-5099913
• Coleridge Community Schools, Nebraska GEOID-3105310
• Durant Public School District, Mississippi GEOID-2801360
• Essex Caledonia Supervisory Union, Vermont GEOID-5099918
• Holmes County School District, Mississippi GEOID-2801980
• Lumberton Public School District, Mississippi GEOID-2802760
• Montgomery County School District, Mississippi GEOID-2802970
• Oregon Trail School District 46, Oregon GEOID-4110920
• Rutland Central Supervisory Union, Vermont GEOID-5099937
• Rutland Southwest Supervisory Union, Vermont GEOID-5099938
• School District Not Defined, Nebraska GEOID-3199997
• Silver Falls School District 4J, Oregon GEOID-4111470
• Valley Community School District, Iowa GEOID-1928710
• Washington South Supervisory Union, Vermont GEOID-5099943
• Windsor Northwest Supervisory Union, Vermont GEOID-5099950
• Winona Separate School District, Mississippi GEOID-2804740

These entities had a GEOID and/or name change in 2019 that impact comparison to data from previous years:

Change to GEOID Code and Name

County Subdivision

• 2018 Name- Bridgewater town, Massachusetts 2018 GEOID- 2502308085
  2019 Name- Bridgewater Town city, Massachusetts 2019 GEOID- 2502308130
• 2018 Name- Randolph town, Massachusetts 2018 GEOID-2502155955
  2019 Name- Randolph Town city, Massachusetts 2019 GEOID-   2502156000
• 2018 Name- Yorkville town, Wisconsin 2018 GEOID-5510189575
  2019 Name- Yorkville village, Wisconsin 2019 GEOID-5510189550

Name Change Only

American Indian Area/Alaska Native Area/Hawaiian Home Land Trust Lands

• GEOID-6340R
  2018 Name- Chulloonawick ANVSA, Alaska
  2019 Name- Chuloonawick ANVSA, Alaska

Census Designated Place

• GEOID-3908168
  2018 Name- Brady Lake village, Ohio
  2019 Name- Brady Lake CDP, Ohio
• GEOID-3010000
  2018 Name- Brockton town, Montana
  2019 Name- Brockton CDP, Montana
• GEOID-5076900
  2018 Name- Waterbury village, Vermont
  2019 Name- Waterbury CDP, Vermont

Incorporated Place

• GEOID-2200835
  2018 Name- Albany Village, Louisiana
  2019 Name- Albany town, Louisiana
• GEOID-3812060
  2018 Name- Canton City city, North Dakota
  2019 Name- Canton City (Hensel) city, North Dakota
• GEOID-3913169
  2018 Name- Centerville village, Ohio
  2019 Name- Centerville (Thurman) village, Ohio
• GEOID-3929288
  2018 Name- Gann village, Ohio
  2019 Name- Gann (Brinkhaven) village, Ohio 
• GEOID-3934202
  2018 Name- Hartford village, Ohio
  2019 Name- Hartford (Croton) village, Ohio
• GEOID-3123270
  2018 Name- Howard City village, Nebraska
  2019 Name- Howard City (Boelus) village, Nebraska
• GEOID-5336395
  2018 Name- Krupp town, Washington
  2019 Name- Krupp (Marlin) town, Washington
• GEOID-4743780
  2018 Name- Loudon town, Tennessee
  2019 Name- Loudon city, Tennessee 
• GEOID-1862028
  2018 Name- Princes Lakes town, Indiana
  2019 Name- Prince’s Lakes town, Indiana
• GEOID-3968196
  2018 Name- Rome village, Ohio
  2019 Name- Rome (Stout) village, Ohio
• GEOID-2963596
  2018 Name- Rushville town, Missouri
  2019 Name- Rushville village, Missouri 

Elementary School District

• GEOID-3813760
  2018 Name- New Public School District 8, North Dakota
  2019 Name- Williams County Public School District 8, North Dakota

Unified School District

• GEOID-0806900
  2018 Name- Northglenn-Thornton School District 12, Colorado
  2019 Name- Adams 12 Five Star Schools, Colorado
• GEOID-5099903
  2018 Name- Addison Central Supervisory Union, Vermont
  2019 Name- Addison Central Unified School District, Vermont
• GEOID-5099902
  2018 Name- Addison Northwest Supervisory Union, Vermont
  2019 Name- Addison Northwest Unified School District, Vermont
• GEOID-1903480
  2018 Name- Alta Community School District, Iowa
  2019 Name- Alta-Aurelia Community School District, Iowa
• GEOID-0802400
  2018 Name- Bayfield School District R-10-JT, Colorado
  2019 Name- Bayfield School District 10 JT-R, Colorado
• GEOID-5099929
  2018 Name- Orange North Supervisory Union, Vermont
  2019 Name- Central Vermont Supervisory Union, Vermont
• GEOID-5099914
  2018 Name- Chittenden South Supervisory Union, Vermont
  2019 Name- Champlain Valley Unified School District, Vermont
• GEOID-3105460
  2018 Name- Cozad City Schools, Nebraska
  2019 Name- Cozad Community Schools, Nebraska
• GEOID-0803150
  2018 Name- Creede Consolidated School District 1, Colorado
  2019 Name- Creede School District, Colorado
• GEOID-3105550
  2018 Name- Creighton Public Schools, Nebraska
  2019 Name- Creighton Community Public Schools, Nebraska
• GEOID-3100077
  2018 Name- Dundy County Public Schools, Nebraska
  2019 Name- Dundy County Stratton Public Schools, Nebraska
• GEOID-0803870
  2018 Name- Falcon School District 49, Colorado
  2019 Name- El Paso County School District 49, Colorado
• GEOID-0803720
  2018 Name- Elizabeth School District C-1, Colorado
  2019 Name- Elizabeth School District, Colorado
• GEOID-0803810
  2018 Name- Park School District R-3, Colorado
  2019 Name- Estes Park School District R-3, Colorado
• GEOID-0803960
  2018 Name- Florence School District RE-2, Colorado
  2019 Name- Fremont RE-2, Colorado
• GEOID-5099942
  2018 Name- Washington West Supervisory Union, Vermont
  2019 Name- Harwood Unified School District, Vermont
• GEOID-3100183
  2018 Name- Howells-Dodge Public Schools, Nebraska
  2019 Name- Howells-Dodge Consolidated Schools, Nebraska
• GEOID-5099908
  2018 Name- Caledonia North Supervisory Union, Vermont
  2019 Name- Kingdom East Supervisory District, Vermont
• GEOID-3100004
  2018 Name- Laurel-Concord Public Schools, Nebraska
  2019 Name- Laurel-Concord-Coleridge School, Nebraska
• GEOID-5099923
  2018 Name- Franklin Central Supervisory Union, Vermont
  2019 Name- Maple Run Unified School District, Vermont
• GEOID-5099933
  2018 Name- Rutland South Supervisory Union, Vermont
  2019 Name- Mill River Unified School District, Vermont
• GEOID-5005610
  2018 Name- Milton Incorporated School District, Vermont
  2019 Name- Milton School District, Vermont
• GEOID-0805700
  2018 Name- Moffat Consolidated School District 2, Colorado
  2019 Name- Moffat School District 2, Colorado
• GEOID-5005700
  2018 Name- Montpelier School District, Vermont
  2019 Name- Montpelier-Roxbury Supervisory Union, Vermont
• GEOID-5099901
  2018 Name- Addison Northeast Supervisory Union, Vermont
  2019 Name- Mt. Abraham Unified School District, Vermont
• GEOID-1900006
  2018 Name- North Fayette Community School District, Iowa
  2019 Name- North Fayette Valley Community School District, Iowa
• GEOID-1921600
  2018 Name- Odebolt-Arthur Community School District, Iowa
  2019 Name- Odebolt Arthur Battle Creek Ida Grove Community School District, Iowa
• GEOID-5099928
  2018 Name- Orange Southwest Supervisory Union, Vermont
  2019 Name- Orange Southwest Unified School District, Vermont
• GEOID-3175030
  2018 Name- Osmond Public Schools, Nebraska
  2019 Name- Osmond Community Schools, Nebraska
• GEOID-3175270
  2018 Name- Papillion-La Vista Public Schools, Nebraska
  2019 Name- Papillion-La Vista Community Schools, Nebraska
• GEOID-3814880
  2018 Name- Park River Public School District 78, North Dakota
  2019 Name- Park River Area Public School District 8, North Dakota
• GEOID-3104950
  2018 Name- Raymond Central Schools, Nebraska
  2019 Name- Raymond Central Public Schools, Nebraska
• GEOID-0806000
  2018 Name- Platte Valley School District RE-3, Colorado
  2019 Name- Revere School District, Colorado
• GEOID-1713290
• 2018 Name- East Richland Community Unit School District 1, Illinois
  2019 Name- Richland County Community Unit School District 1, Illinois
• GEOID-4838520
  2018 Name- St. Jo Independent School District, Texas
  2019 Name- Saint Jo Independent School District, Texas
• GEOID-0802580
  2018 Name- Brighton School District 27Jn, Colorado
  2019 Name- School District 27J, Colorado
• GEOID-5307710
  2018 Name- Seattle School District, Washington
  2019 Name- Seattle Public Schools, Washington
• GEOID-3176590
  2018 Name- Shelby Public Schools, Nebraska
  2019 Name- Shelby-Rising City Public Schools, Nebraska
• GEOID-3175630
  2018 Name- South Sarpy District 46, Nebraska
  2019 Name- Springfield Platteview Community Schools, Nebraska
• GEOID-4842780
  2018 Name- Throckmorton Independent School District, Texas
  2019 Name- Throckmorton Collegiate Independent School District, Texas
• GEOID-3100129
  2018 Name- Twin Rivers Public Schools, Nebraska
  2019 Name- Twin River Public Schools, Nebraska
• GEOID-3119560
  2018 Name- Umonhon Nation Public Schools, Nebraska
  2019 Name- Umo N Ho N Nation Public Schools, Nebraska
• GEOID-5309450
  2018 Name- Walla Walla School District, Washington
  2019 Name- Walla Walla Public Schools, Washington
• GEOID-0804920
  2018 Name- Keenesburg School District RE-3J, Colorado
  2019 Name- Weld County School District RE-3J, Colorado
• GEOID-0807230
  2018 Name- Westminster School District 50, Colorado
  2019 Name- Westminster Public School District, Colorado
• GEOID-5099930
  2018 Name- Orange Windsor Supervisory Union, Vermont
  2019 Name- White River Valley Supervisory Union, Vermont

Alaska has announced the split of 02261 Valdez-Cordova borough into two new census areas, 02063 Chugach and 02066 Copper River. These changes will first appear in the 2020 ACS products.