Founded in 1854, Douglas County is one of 93 counties in the state of Nebraska. Historically, Douglas County was one of nine original counties. The city of Omaha is the county seat. With FIPS code of 55, Douglas County has a population of 585,008 and area of 331 square miles (857 km2).
List of all cities in Douglas County, NE alphabetically
| City/Town | Postal Code | Area Code |
| 1st National Bank of Omaha, NE | 68197 | 402 |
| Air Mail Facility, NE | 68119 | 402 |
| Bar Code, NE | 68172 | 402 |
| Bennington, NE | 68007 | 402 |
| Benson, NE | 68104 | 402 |
| Blue Cross Blue Shield, NE | 68180 | 402 |
| Boys Town, NE | 68010 | 402 |
| Boystown, NE | 68010 | 402 |
| Business Reply, NE | 68172 | 402 |
| Creighton University, NE | 68178 | 402 |
| Elkhorn, NE | 68022 | 402 |
| Florence, NE | 68112 | 402 |
| 68152 | 402 | |
| Leshara, NE | 68064 | 402 |
| Millard, NE | 68144 | 402 |
| Millard, NE | 68145 | 402 |
| Mutual of Omaha, NE | 68175 | 402 |
| Omaha, NE | 68101 | 402 |
| 68102 | 402 | |
| 68103 | 402 | |
| 68104 | 402 | |
| 68105 | 402 | |
| 68106 | 402 | |
| 68107 | 402 | |
| 68108 | 402 | |
| 68109 | 402 | |
| 68110 | 402 | |
| 68111 | 402 | |
| 68112 | 402 | |
| 68114 | 402 | |
| 68116 | 402 | |
| 68117 | 402 | |
| 68118 | 402 | |
| 68119 | 402 | |
| 68120 | 402 | |
| 68122 | 402 | |
| 68124 | 402 | |
| 68127 | 402 | |
| 68130 | 402 | |
| 68131 | 402 | |
| 68132 | 402 | |
| 68134 | 402 | |
| 68135 | 402 | |
| 68137 | 402 | |
| 68139 | 402 | |
| 68142 | 402 | |
| 68144 | 402 | |
| 68145 | 402 | |
| 68152 | 402 | |
| 68154 | 402 | |
| 68155 | 402 | |
| 68164 | 402 | |
| 68172 | 402 | |
| 68175 | 402 | |
| 68176 | 402 | |
| 68178 | 402 | |
| 68179 | 402 | |
| 68180 | 402 | |
| 68182 | 402 | |
| 68183 | 402 | |
| 68197 | 402 | |
| 68198 | 402 | |
| Omaha Douglas Civic Center, NE | 68183 | 402 |
| Ralston, NE | 68127 | 402 |
| Un Med Center, NE | 68198 | 402 |
| Union Pacific RR, NE | 68179 | 402 |
| University of Nebraska at Omaha, NE | 68182 | 402 |
| University of Nebraska Med Center, NE | 68198 | 402 |
| Valley, NE | 68064 | 402 |
| Waterloo, NE | 68069 | 402 |
| Wells Fargo, NE | 68176 | 402 |