The internet is a great source of information on many topics. In particular there are a great deal of web sites devoted to Computer Gadgets, Women in Various Stages of Undress, and Star Trek. This would almost lead you to believe the internet was created by a bunch of nerds who could not get a date. Oh, wait a minute...
Jocularity aside, if you need to research any topic, the internet is a valuable tool. One item have have needed on several occasions is a list of zip codes. Perhaps you want to create an address database and cross reference zip codes with the appropriate counties. Or perhaps your pricing level is determined by location, so you need a zip code list to help you put together your program or spread sheet. Twice I had needed this information while working for an insurance company and for a real estate company.
If you manage to find a decent list, remember you may get some odd results if you try to sort your data. Most likely the zip codes will not sort numerically but in ASCII order, which means that 12 is less than 2, and 3 is greater than 21.
You have a few options. There are plenty of sites that will sell you a list. If you do find a free list, you will need to download it. Downloading anything from an unknown site is computer suicide.
I could only find one list. It is available at 'Web Resources of Genetic Linkage Analysis' at Rockefeller University. Please visit http://linkage.rockefeller.edu/wli/ when you get a chance.
Here is a subset of that data for Massachusetts.
Zip code: City, State (00000-09999) 00401:Pleasantville, NY ...... 00975:San Juan, PR 01001:Agawam, MA 01002:Amherst, MA 01003:Amherst, MA 01004:Amherst, MA 01005:Barre, MA 01007:Belchertown, MA 01008:Blandford, MA 01009:Bondsville, MA 01010:Brimfield, MA 01011:Chester, MA 01012:Chesterfield, MA 01013:Chicopee, MA 01014:Chicopee, MA 01020:Chicopee, MA 01021:Chicopee, MA 01022:Chicopee, MA 01026:Cummington, MA 01027:Easthampton, MA 01028:East Longmeadow, MA 01029:East Otis, MA 01030:Feeding Hills, MA 01031:Gilbertville, MA 01032:Goshen, MA 01033:Granby, MA 01034:Granville, MA 01035:Hadley, MA 01036:Hampden, MA 01037:Hardwick, MA 01038:Hatfield, MA 01039:Haydenville, MA 01040:Holyoke, MA 01041:Holyoke, MA 01050:Huntington, MA 01053:Leeds, MA 01054:Leverett, MA 01056:Ludlow, MA 01057:Monson, MA 01059:North Amherst, MA 01060:Northampton, MA 01061:Northampton, MA 01063:Northampton, MA 01066:North Hatfield, MA 01068:Oakham, MA 01069:Palmer, MA 01070:Plainfield, MA 01071:Russell, MA 01072:Shutesbury, MA 01073:Southampton, MA 01074:South Barre, MA 01075:South Hadley, MA 01077:Southwick, MA 01079:Thorndike, MA 01080:Three Rivers, MA 01081:Wales, MA 01082:Ware, MA 01083:Warren, MA 01084:West Chesterfield, MA 01085:Westfield, MA 01086:Westfield, MA 01088:West Hatfield, MA 01089:West Springfield, MA 01090:West Springfield, MA 01092:Warren, MA 01093:Whately, MA 01094:Wheelwright, MA 01095:Wilbraham, MA 01096:Williamsburg, MA 01097:Woronoco, MA 01098:Worthington, MA 01100:Springfield, MA 01101:Springfield, MA 01102:Springfield, MA 01103:Springfield, MA 01104:Springfield, MA 01105:Springfield, MA 01106:Longmeadow, MA 01107:Springfield, MA 01108:Springfield, MA 01109:Springfield, MA 01111:Springfield, MA 01114:Springfield, MA 01115:Springfield, MA 01118:Springfield, MA 01119:Springfield, MA 01128:Springfield, MA 01129:Springfield, MA 01133:Springfield, MA 01138:Springfield, MA 01139:Springfield, MA 01144:Springfield, MA 01151:Springfield, MA 01152:Springfield, MA 01199:Springfield, MA 01201:Pittsfield, MA 01202:Pittsfield, MA 01203:Pittsfield, MA 01220:Adams, MA 01222:Ashley Falls, MA 01223:Becket, MA 01224:Berkshire, MA 01225:Cheshire, MA 01226:Dalton, MA 01227:Dalton, MA 01229:Glendale, MA 01230:Great Barrington, MA 01235:Hinsdale, MA 01236:Housatonic, MA 01237:Lanesboro, MA 01238:Lee, MA 01240:Lenox, MA 01242:Lenox Dale, MA 01243:Middlefield, MA 01244:Mill River, MA 01245:Monterey, MA 01247:North Adams, MA 01252:South Egremont, MA 01253:Otis, MA 01254:Richmond, MA 01255:Sandisfield, MA 01256:Savoy, MA 01257:Sheffield, MA 01258:South Egremont, MA 01259:Southfield, MA 01260:South Lee, MA 01262:Stockbridge, MA 01263:Stockbridge, MA 01264:Lee, MA 01266:West Stockbridge, MA 01267:Williamstown, MA 01270:Windsor, MA 01301:Greenfield, MA 01302:Greenfield, MA 01330:Ashfield, MA 01331:Athol, MA 01337:Bernardston, MA 01338:Buckland, MA 01339:Charlemont, MA 01340:Colrain, MA 01341:Conway, MA 01342:Deerfield, MA 01343:Drury, MA 01344:Erving, MA 01346:Charlemont, MA 01347:Lake Pleasant, MA 01349:Turners Falls, MA 01350:Monroe Bridge, MA 01351:Montague, MA 01354:Northfield, MA 01355:Orange, MA 01360:Northfield, MA 01364:Orange, MA 01366:Petersham, MA 01367:Rowe, MA 01368:Athol, MA 01369:Shattuckville, MA 01370:Shelburne Falls, MA 01373:South Deerfield, MA 01375:Sunderland, MA 01376:Turners Falls, MA 01379:Wendell, MA 01380:Wendell Depot, MA 01420:Fitchburg, MA 01430:Ashburnham, MA 01431:Ashby, MA 01432:Ayer, MA 01433:Ayer, MA 01436:Baldwinville, MA 01438:East Templeton, MA 01440:Gardner, MA 01441:Gardner, MA 01450:Groton, MA 01451:Harvard, MA 01452:Hubbardston, MA 01453:Leominster, MA 01460:Littleton, MA 01462:Lunenburg, MA 01463:Pepperell, MA 01464:Shirley, MA 01465:Shirley Center, MA 01466:Ashburnham, MA 01467:Still River, MA 01468:Templeton, MA 01469:Townsend, MA 01470:Groton, MA 01471:Groton, MA 01472:West Groton, MA 01473:Westminster, MA 01474:Townsend, MA 01475:Winchendon, MA 01477:Winchendon Springs, MA 01501:Auburn, MA 01503:Berlin, MA 01504:Blackstone, MA 01505:Boylston, MA 01506:Brookfield, MA 01507:Charlton, MA 01508:Charlton City, MA 01509:Charlton Depot, MA 01510:Clinton, MA 01515:East Brookfield, MA 01516:East Douglas, MA 01517:East Princeton, MA 01518:Fiskdale, MA 01519:Grafton, MA 01520:Holden, MA 01522:Jefferson, MA 01523:Lancaster, MA 01524:Leicester, MA 01525:Linwood, MA 01526:Manchaug, MA 01527:Millbury, MA 01529:Millville, MA 01531:New Braintree, MA 01532:Northborough, MA 01534:Northbridge, MA 01535:North Brookfield, MA 01536:North Grafton, MA 01537:North Oxford, MA 01538:North Uxbridge, MA 01539:Oakdale, MA 01540:Oxford, MA 01541:Princeton, MA 01542:Rochdale, MA 01543:Rutland, MA 01545:Shrewsbury, MA 01549:South Berlin, MA 01550:Southbridge, MA 01560:South Grafton, MA 01561:South Lancaster, MA 01562:Spencer, MA 01564:Sterling, MA 01566:Sturbridge, MA 01568:West Upton, MA 01569:Uxbridge, MA 01570:Webster, MA 01580:Westborough, MA 01581:Westborough, MA 01582:Westborough, MA 01583:West Boylston, MA 01585:West Brookfield, MA 01586:Millbury, MA 01587:West Upton, MA 01588:Whitinsville, MA 01590:Wilkinsonville, MA 01600:Worcester, MA 01601:Worcester, MA 01602:Worcester, MA 01603:Worcester, MA 01604:Worcester, MA 01605:Worcester, MA 01606:Worcester, MA 01607:Worcester, MA 01608:Worcester, MA 01609:Worcester, MA 01610:Worcester, MA 01611:Worcester, MA 01612:Worcester, MA 01613:Worcester, MA 01614:Worcester, MA 01615:Worcester, MA 01654:Worcester, MA 01655:Worcester, MA 01701:Framingham, MA 01718:Acton, MA 01719:Acton, MA 01720:Acton, MA 01721:Ashland, MA 01730:Bedford, MA 01731:Bedford, MA 01740:Bolton, MA 01741:Carlisle, MA 01742:Concord, MA 01745:Southborough, MA 01746:Holliston, MA 01747:Hopedale, MA 01748:Hopkinton, MA 01749:Hudson, MA 01752:Marlborough, MA 01754:Maynard, MA 01756:Mendon, MA 01757:Milford, MA 01760:Natick, MA 01770:Sherborn, MA 01772:Southborough, MA 01773:Lincoln, MA 01775:Stow, MA 01776:Sudbury, MA 01778:Wayland, MA 01784:Woodville, MA 01801:Woburn, MA 01803:Burlington, MA 01805:Burlington, MA 01806:Middlesex Essex Gmf, MA 01807:Middlesex Essex Gmf, MA 01808:Middlesex Essex Gmf, MA 01810:Andover, MA 01812:Andover, MA 01813:Middlesex Essex Gmf, MA 01821:Billerica, MA 01822:Billerica, MA 01824:Chelmsford, MA 01826:Dracut, MA 01827:Dunstable, MA 01830:Haverhill, MA 01831:Haverhill, MA 01832:Haverhill, MA 01833:Haverhill, MA 01834:Groveland, MA 01835:Haverhill, MA 01840:Lawrence, MA 01841:Lawrence, MA 01842:Lawrence, MA 01843:Lawrence, MA 01844:Lawrence, MA 01845:North Andover, MA 01850:Lowell, MA 01851:Lowell, MA 01852:Lowell, MA 01853:Lowell, MA 01854:Lowell, MA 01860:Merrimac, MA 01862:North Billerica, MA 01863:North Chelmsford, MA 01864:North Reading, MA 01865:Nutting Lake, MA 01866:Pinehurst, MA 01867:Reading, MA 01876:Tewksbury, MA 01879:Tyngsboro, MA 01880:Wakefield, MA 01885:West Boxford, MA 01886:Westford, MA 01887:Wilmington, MA 01888:Middlesex Essex Gmf, MA 01889:Middlesex Essex Gmf, MA 01890:Winchester, MA 01899:Andover, MA 01901:Lynn, MA 01902:Lynn, MA 01903:Lynn, MA 01904:Lynn, MA 01905:Lynn, MA 01906:Saugus, MA 01907:Swampscott, MA 01908:Nahant, MA 01910:Lynn, MA 01913:Amesbury, MA 01915:Beverly, MA 01921:Boxford, MA 01922:Byfield, MA 01923:Danvers, MA 01929:Essex, MA 01930:Gloucester, MA 01931:Gloucester, MA 01936:Hamilton, MA 01937:Hathorne, MA 01938:Ipswich, MA 01940:Lynnfield, MA 01944:Manchester, MA 01945:Marblehead, MA 01949:Middleton, MA 01950:Newburyport, MA 01951:Newburyport, MA 01952:Newburyport, MA 01960:Peabody, MA 01961:Peabody, MA 01964:Peabody, MA 01965:Prides Crossing, MA 01966:Rockport, MA 01969:Rowley, MA 01970:Salem, MA 01971:Salem, MA 01982:South Hamilton, MA 01983:Topsfield, MA 01984:Wenham, MA 01985:West Newbury, MA 02018:Hingham, MA 02019:Bellingham, MA 02020:Brant Rock, MA 02021:Canton, MA 02025:Cohasset, MA 02026:Dedham, MA 02030:Dover, MA 02031:East Mansfield, MA 02032:East Walpole, MA 02035:Foxboro, MA 02038:Franklin, MA 02040:Greenbush, MA 02041:Green Harbor, MA 02043:Hingham, MA 02045:Hull, MA 02047:Humarock, MA 02048:Mansfield, MA 02050:Marshfield, MA 02051:Marshfield Hills, MA 02052:Medfield, MA 02053:Medway, MA 02054:Millis, MA 02055:Minot, MA 02056:Norfolk, MA 02059:North Marshfield, MA 02060:North Scituate, MA 02061:Norwell, MA 02062:Norwood, MA 02065:Marshfield, MA 02066:Scituate, MA 02067:Sharon, MA 02070:Sheldonville, MA 02071:South Walpole, MA 02072:Stoughton, MA 02081:Walpole, MA 02090:Westwood, MA 02093:Wrentham, MA 02100:Boston, MA 02101:Boston, MA 02102:Boston, MA 02103:Boston, MA 02104:Boston, MA 02105:Boston, MA 02106:Boston, MA 02107:Boston, MA 02108:Boston, MA 02109:Boston, MA 02110:Boston, MA 02111:Boston, MA 02112:Boston, MA 02113:Boston, MA 02114:Boston, MA 02115:Boston, MA 02116:Boston, MA 02117:Boston, MA 02118:Boston, MA 02119:Boston, MA 02120:Boston, MA 02121:Boston, MA 02122:Boston, MA 02123:Boston, MA 02124:Boston, MA 02125:Boston, MA 02126:Boston, MA 02127:Boston, MA 02128:Boston, MA 02129:Boston, MA 02130:Boston, MA 02131:Boston, MA 02132:Boston, MA 02133:Boston, MA 02134:Boston, MA 02135:Boston, MA 02136:Boston, MA 02137:Boston, MA 02138:Cambridge, MA 02139:Cambridge, MA 02140:Cambridge, MA 02141:Cambridge, MA 02142:Cambridge, MA 02143:Somerville, MA 02144:Somerville, MA 02145:Somerville, MA 02146:Brookline, MA 02147:Brookline Village, MA 02148:Malden, MA 02149:Everett, MA 02150:Chelsea, MA 02151:Revere, MA 02152:Winthrop, MA 02153:Medford, MA 02154:Waltham, MA 02155:Medford, MA 02156:West Medford, MA 02157:Babson Park, MA 02158:Newtonville, MA 02159:Newton Center, MA 02160:Newtonville, MA 02161:Newton Highlands, MA 02162:Newton Lower Falls, MA 02163:Boston, MA 02164:Newton Upper Falls, MA 02165:West Newton, MA 02166:Auburndale, MA 02167:Chestnut Hill, MA 02168:Waban, MA 02169:Quincy, MA 02170:Wollaston, MA 02171:North Quincy, MA 02172:Watertown, MA 02173:Lexington, MA 02174:Arlington, MA 02175:Arlington Heights, MA 02176:Melrose, MA 02177:Melrose, MA 02178:Belmont, MA 02179:Waverley, MA 02180:Stoneham, MA 02181:Wellesley, MA 02183:Boston, MA 02184:Braintree, MA 02186:Milton, MA 02187:Milton Village, MA 02188:Weymouth, MA 02189:East Weymouth, MA 02190:South Weymouth, MA 02191:North Weymouth, MA 02192:Needham, MA 02193:Weston, MA 02194:Needham Heights, MA 02195:Nonantum, MA 02199:Boston, MA 02201:Boston, MA 02202:Boston, MA 02203:John Fitzgerald Kennedy, MA 02204:Boston, MA 02205:Boston, MA 02206:Boston, MA 02207:Boston, MA 02208:Boston, MA 02209:Boston, MA 02210:Boston, MA 02211:Boston, MA 02212:Boston, MA 02215:Boston, MA 02216:Boston, MA 02217:Boston, MA 02218:Boston, MA 02222:John Fitzgerald Kennedy, MA 02233:Boston, MA 02238:Boston, MA 02239:Boston, MA 02241:Boston, MA 02254:Waltham, MA 02258:Boston, MA 02269:Quincy, MA 02272:Watertown, MA 02277:Watertown, MA 02292:Boston, MA 02293:Boston, MA 02294:Boston, MA 02295:Boston, MA 02296:Boston, MA 02297:Boston, MA 02298:Boston, MA 02299:Boston, MA 02322:Avon, MA 02324:Bridgewater, MA 02325:Bridgewater, MA 02327:Bryantville, MA 02330:Carver, MA 02331:Duxbury, MA 02332:Duxbury, MA 02333:East Bridgewater, MA 02334:Easton, MA 02337:Elmwood, MA 02338:Halifax, MA 02339:Hanover, MA 02341:Hanson, MA 02343:Holbrook, MA 02345:Manomet, MA 02346:Middleboro, MA 02347:Middleboro, MA 02348:Middleboro, MA 02349:Middleboro, MA 02350:Monponsett, MA 02351:North Abington, MA 02355:North Carver, MA 02356:North Easton, MA 02357:North Easton, MA 02358:North Pembroke, MA 02359:Pembroke, MA 02360:Plymouth, MA 02361:Plymouth, MA 02363:Plymouth, MA 02364:Kingston, MA 02366:South Carver, MA 02367:Plympton, MA 02368:Randolph, MA 02370:Rockland, MA 02371:Rockland, MA 02375:South Easton, MA 02379:West Bridgewater, MA 02381:White Horse Beach, MA 02382:Whitman, MA 02400:Brockton, MA 02401:Brockton, MA 02402:Brockton, MA 02403:Brockton, MA 02532:Buzzards Bay, MA 02534:Cataumet, MA 02535:Chilmark, MA 02536:East Falmouth, MA 02537:East Sandwich, MA 02538:East Wareham, MA 02539:Edgartown, MA 02540:Falmouth, MA 02541:Falmouth, MA 02542:Buzzards Bay, MA 02543:Woods Hole, MA 02552:Menemsha, MA 02553:Monument Beach, MA 02554:Nantucket, MA 02556:North Falmouth, MA 02557:Oak Bluffs, MA 02558:Onset, MA 02559:Pocasset, MA 02561:Sagamore, MA 02562:Sagamore Beach, MA 02563:Sandwich, MA 02564:Nantucket, MA 02565:North Falmouth, MA 02568:Vineyard Haven, MA 02571:Wareham, MA 02573:Vineyard Haven, MA 02574:West Falmouth, MA 02575:West Tisbury, MA 02576:West Wareham, MA 02584:Nantucket, MA 02601:Hyannis, MA 02630:Barnstable, MA 02631:Brewster, MA 02632:Centerville, MA 02633:Chatham, MA 02634:Centerville, MA 02635:Cotuit, MA 02636:Centerville, MA 02637:Cummaquid, MA 02638:Dennis, MA 02639:Dennis Port, MA 02641:East Dennis, MA 02642:Eastham, MA 02643:East Orleans, MA 02644:Forestdale, MA 02645:Harwich, MA 02646:Harwich Port, MA 02647:Hyannis Port, MA 02648:Marstons Mills, MA 02649:Mashpee, MA 02650:North Chatham, MA 02651:North Eastham, MA 02652:North Truro, MA 02653:Orleans, MA 02655:Osterville, MA 02657:Provincetown, MA 02659:South Chatham, MA 02660:South Dennis, MA 02661:South Harwich, MA 02662:South Orleans, MA 02663:South Wellfleet, MA 02664:South Yarmouth, MA 02666:Truro, MA 02667:Wellfleet, MA 02668:West Barnstable, MA 02669:West Chatham, MA 02670:West Dennis, MA 02671:West Harwich, MA 02672:West Hyannisport, MA 02673:South Yarmouth, MA 02675:Yarmouth Port, MA 02702:Assonet, MA 02703:Attleboro, MA 02712:Chartley, MA 02713:Cuttyhunk, MA 02714:New Bedford, MA 02715:Dighton, MA 02717:East Freetown, MA 02718:East Taunton, MA 02719:Fairhaven, MA 02720:Fall River, MA 02721:Fall River, MA 02722:Fall River, MA 02723:Fall River, MA 02724:Fall River, MA 02725:Somerset, MA 02726:Somerset, MA 02738:Marion, MA 02739:Mattapoisett, MA 02740:New Bedford, MA 02741:New Bedford, MA 02742:New Bedford, MA 02743:Acushnet, MA 02744:New Bedford, MA 02745:New Bedford, MA 02746:New Bedford, MA 02747:North Dartmouth, MA 02748:South Dartmouth, MA 02754:North Dighton, MA 02760:North Attleboro, MA 02761:North Attleboro, MA 02762:North Attleboro, MA 02763:North Attleboro, MA 02764:North Dighton, MA 02766:Norton, MA 02767:Raynham, MA 02768:Raynham Center, MA 02769:Rehoboth, MA 02770:Rochester, MA 02771:Seekonk, MA 02777:Swansea, MA 02779:Taunton, MA 02780:Taunton, MA 02790:Westport, MA 02791:Westport Point, MA 02801:Adamsville, RI ..... 99648:Perryville, AK