Pacific is located at (38.481503, -90.750015). The city stradles the Franklin County, MissouriFranklin/St. Louis County, MissouriSt. Louis County lines less than 6 feet (2 M) north of Jefferson County, MissouriJefferson County. Pacific is the only city in the 63069 ZIP code, which includes the faster growing communities directly south of Pacific which subsequently may have a mailing address of Pacific, and the city of Pacific maintains a fire house, as Eureka does, in Jefferson County. Several maps, including those distributed by SBC/AT&T in the local phone books, incorrectly show a small portion of Pacific, located on the south side of the Meramec river that adjoins the Franklin/Jefferson county line, as being in Jefferson county by not properly showing the Franklin/Jefferson county line south of the river. Jefferson County collects fees and taxes for sewer, fire, school, and ambulance for the city of Pacific or appropriate district. The 63069 ZIP code as of the 2000 census had a population of 15,145. One-fifth of the city sits in St. Louis County, however the area located in St. Louis County is almost all commercial, hosting 1/3 of the city's department stores, 1/3 of the city's restaurants, and much of the city's retail and service business. The St. Louis County portion of the city has about twenty residents. The St. Louis / Franklin county line lies halfway on the blocks between Elm and Neosho streets. The historic Red Cedar Inn restaurant is located on the east end of the city along historic Route 66. St. Louis, MissouriSaint Louis is 30 miles (50 km) northeast of Pacific and the communities comprising the Missouri Rhineland are 20 miles (30 km) northwest of the city. Pacific is bordered on the Southeast by the Pacific Palisades, MissouriPacific Palisades Conservation area. Meramec River access, through the Pacific Palisades conservation area, is located east of the city next to Eureka, MissouriEureka on the north side. The majority of the Pacific Pallisades area itself, south of the river, is accessed 1 mile south of the city in Jefferson County. The Union Pacific railroad, Burlington Northern RailroadBurlington Frisco Railroad, Route 66historic Route 66, Brush Creek, and Fox Creek run through the town. The Meramec river is located at the south of the city and large St. Peter Sandstone bluffs line the north end of the city. Fox and Brush creeks empty into the Meramec River east of Pacific just outside of Eureka. The historic Missouri Pacific train station, at the end of the First 38 mile division, is located in the old town center. Interstate 44 cuts through the northern section of the city while HWY 00, F, and N run through the eastern part of the city. According to the United States Census Bureau, the city has a total area of 14.1 square kilometrekm sq (5.4 square miles). 14.0 km sq (5.4 mi sq) of it is land and 0.18% is water. 1.7 mi sq of the city is located in St. Louis County. The city is located directly west from Eureka and five miles (8 km) east of Gray Summit. Source: http://en.wikipedia.org/wiki/Pacific%2C_Missouri