These are a series of maps showing the number of hams per 1000 people in the general population.   The data for the number of hams in each Zip Code came from an extract of the FCC files generated by ARRL HQ.

Most maps are the same scale, about 75 miles from top left to bottom right.  The city maps are about 20 miles from top left to bottom right and the regional maps of northern and southern New England are about 225 miles from top left to bottom right.

Regional Maps   Northern New England Southern New England	Cities Boston MA Burlington VT Hartford CT Nashua NH New Haven CT	Portland ME Providence RI Springfield MA Stamford CT Worcester MA
Connecticut Northeast  - Tolland Northwest - Torrington Southeast  - Norwich Southwest  - Bridgeport Massachusetts Northwest - Pittsfield Southwest - Springfield N. Central - Leominster S. Central - Worcester Northeast - Andover Boston area Southeast - New Bedford Cape Cod	Maine North - Ft.Kent N.Northeast - Caribou Northeast - Houlton N.Northwest-Greenville NE.Central - Lincoln Northwest - Kingfield N.Central-Dover-Foxcroft E.Central - Orono East - Calais W.Central - Farmington Central - Waterville Southeast - Ellsworth E.Southeast - Machias Southwest - Lewiston S.Central - Rockland South - Kennebunk	Rhode Island Northern - Providence Southern - Newport New Hampshire North - Colebrook N.Central - Littleton W.Central - Lebanon E.Central - Laconia Southwest - Keene Southeast - Manchester Vermont Northwest - St.Albans Northeast - Newport N.Central - Montpelier S.Central - Rutland South - Brattleboro