| County : | Washington County |
| State : | Oregon (OR) |
| Land Area : | 724.23 sq mi |
| Water Area : | 2.19 sq mi |
| Latitude : | 45.5535419 |
| Longitude : | -123.0976146 |
| Population (2010): | 529,710 |
| Population Estimate (2012) : | 531,818 |
| Population Density : | 731.42/sq mi |
| Housing Units (2012) : | 212,450 |
| Median Household Income (2012) : | $64,375 (Oregon : $50,036, USA : $53,046) |
| Median Family Income (2012) : | $77,351 (Oregon : $61,438, USA : $64,585) |
| Median House Price (2012) : | $290,900 (Oregon : $246,100, USA : $181,400) |
Washington County Cities / Towns
| Aloha (49,425) | Banks City (1,777) | Beaverton City (89,803) |
| Bethany (20,646) | Bull Mountain (9,133) | Cedar Hills (8,300) |
| Cedar Mill (14,546) | Cornelius City (11,869) | Durham City (1,351) |
| Forest Grove City (21,083) | Garden Home-whitford (6,674) | Gaston City (637) |
| Hillsboro City (91,611) | King City (3,111) | Lake Oswego City (36,619) |
| Metzger (3,765) | North Plains City (1,947) | Oak Hills (11,333) |
| Portland City (583,776) | Raleigh Hills (5,896) | Rivergrove City (289) |
| Rockcreek (9,316) | Sherwood City (18,194) | Tigard City (48,035) |
| Tualatin City (26,054) | West Haven-sylvan (8,001) | West Slope (6,554) |
| Wilsonville City (19,509) |
Washington County Zip Codes
| 97005 (24,906) | 97006 (63,036) | 97007 (66,954) |
| 97008 (28,969) | 97035 (23,912) | 97056 (11,497) |
| 97062 (27,434) | 97064 (3,464) | 97070 (20,957) |
| 97106 (4,550) | 97109 (577) | 97113 (14,155) |
| 97116 (24,104) | 97117 (679) | 97119 (4,420) |
| 97123 (44,537) | 97124 (48,349) | 97125 (157) |
| 97132 (28,278) | 97133 (4,000) | 97140 (23,474) |
| 97144 (195) | 97210 (10,887) | 97221 (11,630) |
| 97223 (46,699) | 97224 (31,122) | 97225 (24,176) |
| 97229 (58,217) | 97231 (4,280) |