[1] : U.S. Gazetteer (1990)

dahlgren, il village, fips 18303
  location: 38.19857 n, 88.68414 w
  population 1990: 512 243 housing units
  area: 2.6 sq km land, 0.0 sq km water
  zip codes: 62828
dahlgren, va
  zip codes: 22448

[2] : U.S. Gazetteer Places (2000)

dahlgren, il -- u.s. village in illinois
   population 2000:    514
   housing units 2000: 245
   land area 2000:     1.003725 sq. miles 2.599636 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    1.003725 sq. miles 2.599636 sq. km
   fips code:            18303
   located within:       illinois il, fips 17
   location:             38.199117 n, 88.685737 w
   zip codes 1990:     62828
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    dahlgren, il
    dahlgren

[3] : U.S. Gazetteer Places (2000)

dahlgren, va -- u.s. census designated place in virginia
   population 2000:    997
   housing units 2000: 510
   land area 2000:     1.126338 sq. miles 2.917201 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    1.126338 sq. miles 2.917201 sq. km
   fips code:            21008
   located within:       virginia va, fips 51
   location:             38.336189 n, 77.050868 w
   zip codes 1990:     22448
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    dahlgren, va
    dahlgren

Dahlgren >> D Words
Dahlgren, definition of term: Dahlgren
dahlgren_pag1.html