Here are the relevant DUNS numbers for Coloradoans:

STATE OF COLORADO D-U-N-S number: 076438621

COUNTY OF ADAMS D-U-N-S number: 076476373
COUNTY OF ALAMOSA D-U-N-S number: 030437479
COUNTY OF ARAPAHOE D-U-N-S number: 073410680
COUNTY OF BACA D-U-N-S number: 037537958
COUNTY OF BENT D-U-N-S number: 095150942
COUNTY OF BOULDER D-U-N-S number: 075755199
COUNTY OF CHAFFEE D-U-N-S number: 082652777
COUNTY OF CHEYENNE D-U-N-S number: 005571210
COUNTY OF CLEAR CREEK D-U-N-S number: 144835258
COUNTY OF CONEJOS D-U-N-S number: 014837892
COUNTY OF COSTILLA D-U-N-S number: 613972629
COUNTY OF CROWLEY D-U-N-S number: 014840110
COUNTY OF CUSTER D-U-N-S number: 014842504
COUNTY OF DELTA D-U-N-S number: 076441195
COUNTY OF DENVER D-U-N-S number: 073132409
COUNTY OF DOLORES D-U-N-S number: 014842777
COUNTY OF DOUGLAS D-U-N-S number: 014842934
COUNTY OF EAGLE D-U-N-S number: 084024447
COUNTY OF EL PASO D-U-N-S number: 076444017
COUNTY OF ELBERT D-U-N-S number: 081953838
COUNTY OF FREMONT D-U-N-S number: 080392731
COUNTY OF GARFIELD D-U-N-S number: 014842983
COUNTY OF GILPIN D-U-N-S number: 080378730
COUNTY OF GRAND D-U-N-S number: 030443576
COUNTY OF GUNNISON D-U-N-S number: 133115220
COUNTY OF HINSDALE D-U-N-S number: 014846091
COUNTY OF HUERFANO D-U-N-S number: 014846562
COUNTY OF JACKSON D-U-N-S number: 076441740
COUNTY OF JEFFERSON D-U-N-S number: 079467024
KIOWA COUNTY D-U-N-S number: 014846976
COUNTY OF KIT CARSON D-U-N-S number: 014847487
LA PLATA COUNTY D-U-N-S number: 076441138
COUNTY OF LAKE D-U-N-S number: 080381874
COUNTY OF LARIMER D-U-N-S number: 030446819
COUNTY OF LAS ANIMAS D-U-N-S number: 088354584
COUNTY OF LINCOLN D-U-N-S number: 014847958
COUNTY OF LOGAN D-U-N-S number: 099908337
COUNTY OF MESA D-U-N-S number: 014848873
COUNTY OF MINERAL D-U-N-S number: 118837087
COUNTY OF MOFFAT D-U-N-S number: 076441807
COUNTY OF MONTEZUMA D-U-N-S number: 014849020
COUNTY OF MONTROSE D-U-N-S number: 076471077
COUNTY OF MORGAN D-U-N-S number: 014849202
COUNTY OF OTERO D-U-N-S number: 081963944
COUNTY OF OURAY D-U-N-S number: 014851620
COUNTY OF PARK D-U-N-S number: 094154119
COUNTY OF PHILLIPS D-U-N-S number: 014852693
COUNTY OF PITKIN D-U-N-S number: 085278844
COUNTY OF PROWERS D-U-N-S number: 014854343
COUNTY OF PUEBLO D-U-N-S number: 182814632
COUNTY OF RIO BLANCO D-U-N-S number: 076441864
COUNTY OF RIO GRANDE D-U-N-S number: 094161494
COUNTY OF ROUTT D-U-N-S number: 076441922
SAGUACHE COUNTY D-U-N-S number: 151555810
COUNTY OF SAN JUAN D-U-N-S number: 182859199
COUNTY OF SAN MIGUEL D-U-N-S number: 014856074
COUNTY OF SEDGWICK D-U-N-S number: 010629707
COUNTY OF SUMMIT D-U-N-S number: 082653023
COUNTY OF TELLER D-U-N-S number: 085150480
COUNTY OF WASHINGTON D-U-N-S number: 022623011
COUNTY OF WELD D-U-N-S number: 075757955
COUNTY OF YUMA D-U-N-S number: 182801431