| Zip Code | Primary City | Secondary City |
| 20001 | Washington | |
| 20002 | Washington | |
| 20003 | Washington | |
| 20004 | Washington | |
| 20005 | Washington | |
| 20006 | Washington | |
| 20007 | Washington | |
| 20008 | Washington | |
| 20009 | Washington | |
| 20010 | Washington | |
| 20011 | Washington | |
| 20012 | Washington | |
| 20013 | Washington | |
| 20015 | Washington | Chevy Chase |
| 20016 | Washington | |
| 20017 | Washington | |
| 20018 | Washington | |
| 20019 | Washington | |
| 20020 | Washington | |
| 20022 | Washington | |
| 20023 | Washington | |
| 20024 | Washington | Washington, Fort Lesley J Mcnair, Fort Mcnair, Ft L J Mcnair |
| 20026 | Washington | |
| 20027 | Washington | |
| 20029 | Washington | |
| 20030 | Washington | |
| 20032 | Washington | Washington, Bolling Air Force Bas, Wash, Washing, Washingtn, Bolling Afb |
| 20033 | Washington | |
| 20035 | Washington | |
| 20036 | Washington | |
| 20037 | Washington | |
| 20038 | Washington | |
| 20039 | Washington | |
| 20040 | Washington | |
| 20041 | Washington | Dulles International Airp |
| 20042 | Washington | Sun Trust Bank Inc |
| 20043 | Washington | |
| 20044 | Washington | |
| 20045 | Washington | |
| 20046 | Washington | G E I C O |
| 20047 | Washington | Criterion Ins Co |
| 20049 | Washington | Amer Assc Retired Persons |
| 20050 | Washington | Pentagon |
| 20051 | Washington | Woodward And Lothrop |
| 20052 | Washington | G W Univ |
| 20053 | Washington | Verizon |
| 20055 | Washington | Bank Of America |
| 20056 | Washington | |
| 20057 | Washington | Georgetown Univ |
| 20058 | Washington | Marriott Corp |
| 20059 | Washington | Howard Univ |
| 20060 | Washington | Howard University Hospital |
| 20061 | Washington | Wachovia |
| 20062 | Washington | U S Chamber Of Com |
| 20063 | Washington | Int Group Plans Inc |
| 20064 | Washington | Catholic Univ |
| 20065 | Washington | Blue Cross Group Hosp |
| 20066 | Washington | Washington DCPost Office |
| 20067 | Washington | Pepco |
| 20068 | Washington | P E P C O |
| 20069 | Washington | Wash Intell Bureau Inc |
| 20070 | Washington | Washington Intel Bur |
| 20071 | Washington | Washington Post |
| 20073 | Washington | Pnc Financial |
| 20074 | Washington | Pnc Financial |
| 20075 | Washington | Pnc Financial |
| 20076 | Washington | G E I C O |
| 20077 | Washington | Brm |
| 20078 | Washington | Shared Brm |
| 20080 | Washington | Wash Gas |
| 20081 | Washington | Washington Gas |
| 20082 | Washington | Natl Repub Cong Comm |
| 20088 | Washington | Friendship Heights |
| 20090 | Washington | General Delivery |
| 20091 | Washington | |
| 20097 | Washington | Natl Repub Cong Comm |
| 20098 | Washington | Vietnam Vet Mem Fund |
| 20201 | Washington | Us Dept Of Hlth Human Serv |
| 20202 | Washington | Us Dept Of Education |
| 20203 | Washington | Us Social Securtiy Admin |
| 20204 | Washington | Hew Food And Drug Admin |
| 20206 | Washington | Soc Sec Bureau Hearing App |
| 20207 | Washington | Consumer Product Safety Comm |
| 20208 | Washington | Natl Institute Of Educ |
| 20210 | Washington | Dept Of Labor |
| 20211 | Washington | Office Of Workers Comp |
| 20212 | Washington | Us Dept Of Labor Stats |
| 20213 | Washington | Dept Of Labor Manpower Admn |
| 20214 | Washington | Bureau Labor Statistics |
| 20215 | Washington | Dept Labor Payroll Audit Div |
| 20216 | Washington | Labor Management Admin |
| 20217 | Washington | Us Tax Court |
| 20218 | Washington | Natl Comm On Social Sec |
| 20219 | Washington | Comptroller Of Currency |
| 20220 | Washington | Us Department Of Treasury |
| 20221 | Washington | District Director Irs |
| 20222 | Washington | Us Treasurer |
| 20223 | Washington | Us Secret Service |
| 20224 | Washington | Internal Revenue Service |
| 20226 | Washington | Dept Treas Other Offices |
| 20227 | Washington | Dept Treas Check Claims Div |
| 20228 | Washington | Bureau Engav And Printing |
| 20229 | Washington | Us Bureau Of Customs |
| 20230 | Washington | Dept Of Commerce |
| 20232 | Washington | Resolutn Trust Oversight Brd |
| 20233 | Washington | Bureau Of Census |
| 20235 | Washington | Dept Of Commerce Outside Hq |
| 20237 | Washington | Broadcasting Bd Of Governors |
| 20238 | Washington | Us Holocaust Memorial Museum |
| 20239 | Washington | Bureau Of Public Debt |
| 20240 | Washington | Dept Of Interior |
| 20241 | Washington | Bureau Of Mines |
| 20242 | Washington | National Park Service |
| 20244 | Washington | Geological Survey |
| 20245 | Washington | Bureau Of Indian Affairs |
| 20250 | Washington | Dept Of Agriculture |
| 20251 | Washington | Dept Agric Off Outside Hq |
| 20254 | Washington | Social Security |
| 20260 | Washington | Usps Headquarters |
| 20261 | Washington | Usps Consumer Affairs |
| 20262 | Washington | Mafic |
| 20265 | Washington | Philatelic Sales Division |
| 20266 | Washington | Philatelic Sales |
| 20268 | Washington | Postal Regulatory Comm |
| 20270 | Washington | Presidential Transition Team |
| 20277 | Washington | Business Reply |
| 20289 | Washington | Universal Postal Union Congr |
| 20299 | Washington | Readasorus |
| 20301 | Washington | Pentagon |
| 20303 | Washington | National Imaging And Mapping |
| 20306 | Washington | Armed Forces Inst Pathology |
| 20307 | Washington | Walter Reed Army Med Center |
| 20310 | Washington | Dept Of Army Pentagon |
| 20314 | Washington | Us Army Corp Of Engineers |
| 20317 | Washington | Soldiers Airmens Home |
| 20318 | Washington | Washington, Army Criminal Invest, Joint Staff |
| 20319 | Washington | Fort Mcnair |
| 20330 | Washington | Dept Air Force Pentagon |
| 20340 | Washington | Defense Intelligence |
| 20350 | Washington | Chief Naval Operation |
| 20355 | Washington | Pentagon |
| 20370 | Washington | Navy Annex |
| 20372 | Washington | Bur Medicine Surgery |
| 20373 | Naval Anacost Annex | Washington, Naval Station Anacostia, Anacostia, Anacostia Anx, |
| 20374 | Washington Navy Yard | Washington, Navy Yard, Na |
| 20375 | Washington | Naval Research Laboratory |
| 20376 | Washington Navy Yard | Washington, Naval Sea Sys, Naval Sea Systems Command, Na |
| 20380 | Washington | Dept Navy Hq Marines Arl |
| 20388 | Washington Navy Yard | Washington, Naval Investigative Service, Na |
| 20389 | Washington | Naval Intelligence Com |
| 20390 | Washington | Washington, Dept Navy Other Offices, Marine Barrks, Us Marine Corps Barracks |
| 20391 | Washington Navy Yard | Washington, Dept Navy Fed Credit Union, Na |
| 20392 | Washington | Navy Observatory |
| 20393 | Washington | Navy Security Group |
| 20394 | Washington | Naval Telecommunications Com |
| 20395 | Washington | Naval Intelligence Support C |
| 20398 | Washington Navy Yard | Washington, Military Sealift Command, Na |
| 20401 | Washington | Govt Printing Office |
| 20402 | Washington | Gpo Supt Of Documents |
| 20403 | Washington | Gpo Field Serv Div |
| 20404 | Washington | Gpo Procurement Div |
| 20405 | Washington | Gen Services Admin |
| 20406 | Washington | Gsa Crystal City |
| 20407 | Washington | Gsa Region 3 |
| 20408 | Washington | Natl Archives And Records |
| 20409 | Washington | Fed Records Center |
| 20410 | Washington | Housing And Urban Dev |
| 20411 | Washington | Hud Fed Housing Adm |
| 20412 | Washington | Fha Comptroller |
| 20413 | Washington | Housing Assistance Adm |
| 20414 | Washington | Hud Fed Natl Mortgage |
| 20415 | Washington | Office Personnel Mgmt |
| 20416 | Washington | Small Business Admin |
| 20417 | Washington | Gen Services Admin |
| 20418 | Washington | National Academy Of Science |
| 20419 | Washington | Merit Systems Protection Bd |
| 20420 | Washington | Veterans Admin |
| 20421 | Washington | Veterans Benefits Office |
| 20422 | Washington | Veterans Hospital |
| 20423 | Washington | Surface Transportation Board |
| 20424 | Washington | Fed Labor Relations Auth |
| 20425 | Washington | Comm On Civil Rights |
| 20426 | Washington | Federal Energy Reg Comm |
| 20427 | Washington | Fed Mediation And Concil Ser |
| 20428 | Washington | Civil Aeronautics Board |
| 20429 | Washington | Federal Deposit Ins Corp |
| 20431 | Washington | International Monetary Fund |
| 20433 | Washington | World Bank |
| 20434 | Washington | Resolution Trust Corporation |
| 20435 | Washington | National Selective Service |
| 20436 | Washington | International Trade Comm |
| 20437 | Washington | Food And Drug Admin |
| 20439 | Washington | Us Court Appeal Fed Circuit |
| 20440 | Washington | International Joint Comm |
| 20441 | Washington | Inter Amer Defense Board |
| 20442 | Washington | Court Of Military Appeals |
| 20444 | Washington | Tennessee Valley Auth |
| 20447 | Washington | Family Support Administratio |
| 20451 | Washington | Arms Control And Disarm Agy |
| 20453 | Washington | Comm Equal Oppor Armed Forc |
| 20456 | Washington | National Credit Union Admin |
| 20460 | Washington | Envir Protect Agency |
| 20463 | Washington | Federal Election Comm |
| 20468 | Washington | Gsa Surplus Sales |
| 20469 | Washington | Gsa Consumer Products Info |
| 20470 | Washington | Gsa Tcs |
| 20472 | Washington | Fed Emer Mngt Agency |
| 20500 | Washington | |
| 20501 | Washington | White House Ofc Of Vice Pres |
| 20502 | Washington | White House Ofc Staff |
| 20503 | Washington | Office Of Mgmt And Budget |
| 20504 | Washington | National Security Counsel |
| 20505 | Washington | Central Intelligence Agency |
| 20506 | Washington | Exec Office Other Organ |
| 20507 | Washington | Equal Emp Opportunity Comm |
| 20508 | Washington | U S Trade Representative |
| 20509 | Washington | White House Ofc Staff |
| 20510 | Washington | United States Senate |
| 20511 | Washington | Dir National Intelligence |
| 20515 | Washington | Us House Of Representatives |
| 20520 | Washington | Department Of State |
| 20521 | Washington | State Department |
| 20522 | Washington | |
| 20523 | Washington | Department State Intrntl Div |
| 20524 | Washington | Passport Office |
| 20525 | Washington | Action |
| 20526 | Washington | Peace Corps |
| 20527 | Washington | Oversea Pvt Inves Corp |
| 20528 | Washington | Dept Of Homeland Security |
| 20529 | Washington | Us Citizenship Immigration |
| 20530 | Washington | Dept Of Justice |
| 20531 | Washington | Law Enforce Assist Adm |
| 20532 | Washington | Bureau Narc Dngr Drugs Lab |
| 20533 | Washington | Bureau Narc And Dngr Drugs |
| 20534 | Washington | Bureau Of Prisons |
| 20535 | Washington | Fbi |
| 20536 | Washington | Immig And Naturalization Ser |
| 20537 | Washington | Fbi Identification Unit |
| 20538 | Washington | Immig And Naturalization Ser |
| 20539 | Washington | Immig And Natural Records |
| 20540 | Washington | Library Of Congress |
| 20541 | Washington | Library Of Congress Card Div |
| 20542 | Washington | Library Of Congress Handicap |
| 20543 | Washington | Us Supreme Court |
| 20544 | Washington | Adm Office Us Court |
| 20546 | Washington | Natl Aero And Space Admin |
| 20547 | Washington | Us Information Agency |
| 20548 | Washington | General Accounting Office |
| 20549 | Washington | Securities And Exchange Comm |
| 20551 | Washington | Federal Reserve Board |
| 20552 | Washington | Office Of Thrift Supervision |
| 20553 | Washington | Federal Aviation Agency |
| 20554 | Washington | Fed Communications Comm |
| 20555 | Washington | Nuclear Regulatory Comm |
| 20557 | Washington | Lib Of Congress Licensing |
| 20558 | Washington | Comm Tech Uses Copyrights |
| 20559 | Washington | Us Copyright Office |
| 20560 | Washington | Smithsonian Institute |
| 20565 | Washington | National Gallery Of Art |
| 20566 | Washington | John F Kennedy Center |
| 20570 | Washington | Natl Labor Relations Board |
| 20571 | Washington | Export Import Bank |
| 20572 | Washington | National Mediation Board |
| 20573 | Washington | Federal Maritime Commission |
| 20575 | Washington | Adv Comm Inter Govt Relation |
| 20576 | Washington | Natl Capitol Planning |
| 20577 | Washington | Inter American Dev Bank |
| 20578 | Washington | Farm Credit Admin |
| 20579 | Washington | Foreign Claims Settlement |
| 20580 | Washington | Federal Trade Comm |
| 20581 | Washington | Commodity Futures Trade |
| 20585 | Washington | Dept Of Energy |
| 20586 | Washington | Us Synthetic Fuel Corp |
| 20590 | Washington | Dept Of Transportation |
| 20591 | Washington | Dept Of Transportation |
| 20593 | Washington | Us Coast Guard |
| 20594 | Washington | Natl Trans Safety Board |
| 20597 | Washington | Armed Forces Inaugural Com |
| 20599 | Washington | Pre Inaugural Committee |