| Table ID No. | MCAG | Legal Name | Entity Name | Government Description |
| 1797 | 1882 | Aberdeen School District No. 5 | Aberdeen School District No 5 | School Districts |
| 222 | 0331 | City of Aberdeen | Aberdeen, City of | City/Town |
| 1 | S165 | State Board of Accountancy | Accountancy Board | Agency, Commission, or Board |
| 2 | S035 | Office of the State Actuary | Actuary Office | Agency, Commission, or Board |
| 560 | 2382 | Adams Conservation District | Adams Conservation District | Conservation District |
| 616 | 0091 | Adams County | Adams County | County |
| 122 | 0005 | Adams County Cemetery District No. 1 | Adams County Cemetery District No 1 | Cemetery District |
| 123 | 0392 | Adams County Cemetery District No. 2 | Adams County Cemetery District No 2 | Cemetery District |
| 857 | 1029 | Adams County Fire Protection District No. 1 | Adams County Fire Protection District No 1 | Fire Protection District |
| 858 | 1030 | Adams County Fire Protection District No. 2 | Adams County Fire Protection District No 2 | Fire Protection District |
| 859 | 1031 | Adams County Fire Protection District No. 3 | Adams County Fire Protection District No 3 | Fire Protection District |
| 860 | 1032 | Adams County Fire Protection District No. 4 | Adams County Fire Protection District No 4 | Fire Protection District |
| 861 | 1033 | Adams County Fire Protection District No. 5 | Adams County Fire Protection District No 5 | Fire Protection District |
| 862 | 1034 | Adams County Fire Protection District No. 6 | Adams County Fire Protection District No 6 | Fire Protection District |
| 863 | 1035 | Adams County Fire Protection District No. 7 | Adams County Fire Protection District No 7 | Fire Protection District |
| 1272 | 0420 | Adams County Health District | Adams County Health District | Health District |
| 1560 | 1661 | Adams County Mosquito Control District | Adams County Mosquito Control District | Mosquito Control District |
| 1571 | 0396 | Adams County Parks and Recreation District No. 1 | Adams County Parks and Recreation District No 1 | Park and Recreation District |
| 1572 | 0398 | Adams County Parks and Recreation District No. 2 | Adams County Parks and Recreation District No 2 | Park and Recreation District |
| 1573 | 0395 | Adams County Parks and Recreation District No. 3 | Adams County Parks and Recreation District No 3 | Park and Recreation District |
| 1574 | 1311 | Adams County Parks and Recreation District No. 4 | Adams County Parks and Recreation District No 4 | Park and Recreation District |
| 1286 | 0593 | Adams County Public Hospital District No. 2 | Adams County Public Hospital District No 2 | Hospital District |
| 1287 | 0595 | Adams County Public Hospital District No. 3 | Adams County Public Hospital District No 3 | Hospital District |
| 2130 | 2794 | Adams County Water Conservancy Board | Adams County Water Conservancy Board | Water Conservation Board |
| 2151 | 0394 | Adams County Water District No. 1 | Adams County Water District No 1 | Water/Sewer District |
| 2342 | 2336 | Adams County Weed Control District No. 1 | Adams County Weed Control District No 1 | Weed District |
| 3 | S110 | Office of Administrative Hearings | Administrative Hearings Office | Agency, Commission, or Board |
| 4 | S055 | Office of Administrator for the Courts | Administrator for the Courts, Office of | Agency, Commission, or Board |
| 2152 | 0958 | Admirals Cove Water District | Admirals Cove Water District | Water/Sewer District |
| 1798 | 1952 | Adna School District No. 226 | Adna School District No 226 | School Districts |
| 1399 | 1580 | Aeneas Lake Irrigation District | Aeneas Lake Irrigation District | Irrigation and Reclamation District |
| 5 | S119 | Washington State Commission on African-American Affairs | African-American Affairs, Commission on | Agency, Commission, or Board |
| 116 | 0756 | Aging & Adult Care of Central Washington | Aging & Adult Care of Central Washington | Area Agency on Aging |
| 117 | 0134 | Aging and Long Term Care of Eastern Washington | Aging and Long Term Care of Eastern Washington | Area Agency on Aging |
| 1400 | 1562 | Agnew Irrigation District | Agnew Irrigation District | Irrigation and Reclamation District |
| 6 | S495 | Department of Agriculture | Agriculture, Department of | Agency, Commission, or Board |
| 1401 | 1617 | Ahtanum Irrigation District | Ahtanum Irrigation District | Irrigation and Reclamation District |
| 1492 | 2748 | Airport Communities Coalition | Airport Communities Coalition | Joint Operating Agency |
| 223 | 0702 | City of Airway Heights | Airway Heights, City of | City/Town |
| 224 | 0797 | Town of Albion | Albion, Town of | City/Town |
| 2153 | 2303 | Alderwood Water District | Alderwood Water and Wastewater District | Water/Sewer District |
| 504 | S501 | Washington State Alfalfa Seed Commission | Alfalfa Seed Commission, Washington State | Commodity Commissions |
| 791 | 0792 | Algona Economic Development Corporation | Algona Economic Development Corporation | Economic/Industrial Development |
| 225 | 0367 | City of Algona | Algona, City of | City/Town |
| 1616 | 1742 | Port of Allyn | Allyn, Port of | Port District (Includes Airports) |
| 1799 | 1961 | Almira School District No. 17 | Almira School District No 17 | School Districts |
| 226 | 0504 | Town of Almira | Almira, Town of | City/Town |
| 2154 | 2777 | Alpine Water District | Alpine Water District | Water/Sewer District |
| 1402 | 1581 | Alta Vista Irrigation District | Alta Vista Irrigation District | Irrigation and Reclamation District |
| 792 | 0530 | City of Anacortes Economic Development Corporation | Anacortes Economic Development Corporation | Economic/Industrial Development |
| 1342 | 1515 | Anacortes Housing Authority | Anacortes Housing Authority | Housing Authority |
| 793 | 0645 | Port of Anacortes Industrial Development Corporation | Anacortes Industrial Development Corporation, Port of | Economic/Industrial Development |
| 1800 | 2017 | Anacortes School District No. 103 | Anacortes School District No 103 | School Districts |
| 227 | 0628 | City of Anacortes | Anacortes, City of | City/Town |
| 1617 | 1756 | Port of Anacortes | Anacortes, Port of | Port District (Includes Airports) |
| 1575 | 1689 | Anderson Island Park and Recreation District | Anderson Island Park and Recreation District | Park and Recreation District |
| 2155 | 2268 | Annapolis Water District | Annapolis Water District | Water/Sewer District |
| 505 | S500 | Washington State Apple Advertising Commission | Apple Advertising Commission, Washington State | Commodity Commissions |
| 1801 | 2030 | Arlington School District No. 16 | Arlington School District No 16 | School Districts |
| 228 | 0654 | City of Arlington | Arlington, City of | City/Town |
| 1403 | 1608 | Artesia Irrigation District No. 8 | Artesia Irrigation District No 8 | Irrigation and Reclamation District |
| 7 | S387 | Washington State Arts Commission | Arts Commission, Washington State | Agency, Commission, or Board |
| 2156 | 2672 | Ashford Water District | Ashford Water District | Water/Sewer District |
| 8 | S087 | Washington State Commission on Asian Pacific American Affairs | Asian Pacific American Affairs, Commission on | Agency, Commission, or Board |
| 561 | 2384 | Asotin County Conservation District | Asotin Conservation District | Conservation District |
| 617 | 0093 | Asotin County | Asotin County | County |
| 864 | 1036 | Asotin County Fire Protection District No. 1 | Asotin County Fire Protection District No 1 | Fire Protection District |
| 1273 | 0203 | Asotin County Health District | Asotin County Health District | Health District |
| 1343 | 1496 | Housing Authority of Asotin County | Asotin County Housing Authority | Housing Authority |
| 1755 | 0612 | Public Utility District No. 1 of Asotin County | Asotin County Public Utility District No 1 | Public Utility District (PUD) |
| 1505 | 1633 | Asotin Library District | Asotin Library District | Library District |
| 1802 | 1815 | Asotin School District No. 420 | Asotin School District No 420 | School Districts |
| 229 | 0195 | City of Asotin | Asotin, City of | City/Town |
| 506 | S506 | Washington State Asparagus Commission | Asparagus Commission, Washington State | Commodity Commissions |
| 1384 | 0782 | Association of Washington Cities Risk Management Service Agency | Association of Washington Cities Risk Management Service Agency | Insurance Pool/Risk Management |
| 9 | S100 | Office of the Attorney General | Attorney General, Office of | Agency, Commission, or Board |
| 1803 | 1916 | Auburn School District No. 408 | Auburn School District No 408 | School Districts |
| 230 | 0369 | City of Auburn | Auburn, City of | City/Town |
| 10 | S095 | Office of the State Auditor | Auditor, Office of the State | Agency, Commission, or Board |
