| County : | Jefferson County |
| State : | Colorado (CO) |
| Land Area : | 764.20 sq mi |
| Water Area : | 9.82 sq mi |
| Latitude : | 39.5864595 |
| Longitude : | -105.2456005 |
| Population (2010): | 534,543 |
| Population Estimate (2012) : | 536,095 |
| Population Density : | 699.48/sq mi |
| Housing Units (2012) : | 229,967 |
| Median Household Income (2012) : | $68,748 (Colorado : $58,244, USA : $53,046) |
| Median Family Income (2012) : | $84,468 (Colorado : $72,455, USA : $64,585) |
| Median House Price (2012) : | $260,800 (Colorado : $236,800, USA : $181,400) |
Jefferson County Cities / Towns
| Applewood (7,160) | Arvada City (106,433) | Aspen Park (882) |
| Bow Mar Town (866) | Coal Creek (2,400) | Columbine (24,280) |
| Dakota Ridge (32,005) | East Pleasant View (356) | Edgewater City (5,170) |
| Evergreen (9,038) | Fairmount (7,559) | Genesee (3,609) |
| Golden City (18,867) | Idledale (252) | Indian Hills (1,280) |
| Ken Caryl (32,438) | Kittredge (1,304) | Lakeside Town (8) |
| Lakewood City (142,980) | Littleton City (41,737) | Morrison Town (428) |
| Mountain View Town (507) | Westminster City (106,114) | West Pleasant View (3,840) |
| Wheat Ridge City (30,166) |
Jefferson County Zip Codes
| 80002 (18,020) | 80003 (35,384) | 80004 (35,892) |
| 80005 (25,553) | 80007 (7,262) | 80020 (46,871) |
| 80021 (30,051) | 80031 (33,932) | 80033 (23,969) |
| 80123 (44,795) | 80127 (42,597) | 80128 (34,988) |
| 80135 (3,833) | 80212 (18,051) | 80214 (24,821) |
| 80215 (17,843) | 80226 (30,930) | 80227 (33,667) |
| 80228 (30,138) | 80232 (21,411) | 80235 (7,571) |
| 80401 (39,378) | 80403 (18,211) | 80421 (8,042) |
| 80425 (184) | 80433 (8,354) | 80439 (23,778) |
| 80453 (197) | 80454 (1,224) | 80457 (612) |
| 80465 (15,147) | 80470 (3,287) |