Question:  Little Catoctin Creek starts south of a town with a population of what at hte 2010 census?
Context: Little Catoctin Creek is an 8.5 mi tributary of the Potomac River in Frederick County, Maryland.  The creek starts south of Burkittsville and flows to the southeast, passing north of Brunswick before emptying into the Potomac west of Lander. Middletown is a suburban town in Frederick County, Maryland, United States.  The population was 4,138 at the 2010 census.  Located in the Middletown Valley that stretches between the Catoctin Mountains on the east and South Mountain on the west, the town reportedly gained its name from its location midway between those ranges. Point of Rocks is an unincorporated community and census-designated place (CDP) in Frederick County, Maryland, United States.  As of the 2010 census it had a population of 1,466.  It is named for the striking rock formation on the adjacent Catoctin Mountain, which was formed by the Potomac River cutting through the ridge in a water gap, a typical formation in the Appalachian Mountains.  The formation is not visible from the town and can only be seen from boats on the river, or from the southern bank of the river in Virginia. Paloma Creek is a master-planned community in eastern Denton County, Texas, United States.  The community is listed by the U.S. Census Bureau as two separate census-designated places, "Paloma Creek" and "Paloma Creek South", separated by US HWY 380.  As of the 2010 census, the Paloma Creek CDP (known locally as "Paloma Creek North") had a population of 2,501, while Paloma Creek South had a population of 2,753. Leesburg is a historic town within and the county seat of Loudoun County, Virginia.  Leesburg is 33 mi west-northwest of Washington, D.C. along the base of Catoctin Mountain and adjacent to the Potomac River.  Its population according to the 2010 Census is 42,616.  The town is also the northwestern terminus of the Dulles Greenway, a private toll road that connects to the Dulles Toll Road at Washington Dulles International Airport. Sun Valley, Pennsylvania is a census-designated borough  in NW Chestnuthill Township, Monroe County on the west side of Route 115 and the south flank of Pohopoco Mountain.  The Pohopoco Creek starts in Sun Valley and flows south to Gilbert then west to Beltzville Lake and the Lehigh River.  New Jersey Camp Jaycee for people with special needs is located in the CDP, which uses the Effort zip code of 18330.   As of the 2010 census the population was 2,399 residents. Wayland is a city in Jefferson Township, Henry County, Iowa, United States.  The population was 966 at the 2010 census.  Wayland was originally known as Crooked Creek.  Crooked Creek became a voting precinct October 5, 1840.  The first burial is given to John Bullock in 1838.  He came as a surveyor to this region in 1837.  The need to establish a post office followed.  Rufus M. Pickell, one of the local leaders, was appointed on February 3, 1843, postmaster for the land East of the Skunk River and South of Crooked Creek.  Pickell was also a blacksmith by trade.  Establishing a church followed, so the little log cabin Methodist Church was built in 1844.  From 1851 to 1880 the town was known as Marshall.  Christian Roth Sr. erected a brewery on his homestead in 1856, which was completed at a cost of over $4,000.  Until its closing by laws passed in 1884, it had done a prosperous business and had a capacity of 10 barrels a day.  Confusion over the name Marshall, Henry County and Marshalltown, Iowa, especially with mail getting mixed, required in 1879 a change in the smaller town relinquishing its name and taking up a new one in 1880.  In the 1879 Henry County History book the following names can be found in Jefferson Township: Burrows, Clifton, Cook, Davies, Everts, Farmer, Hull, Jessup, Johnson, Manning, Mathews, Moore, Noble, Ressel, Sayles, Shively, Turney, Walker, Wallbank, Wiggins, and Williams. Burkittsville is a town in Frederick County, Maryland, United States.  The population was 151 at the 2010 census. Horse Creek is an unincorporated community in western Laramie County, Wyoming, United States.  It lies between Horse Creek to the north, and the South Fork of Horse Creek to the south, along WYO 211 northwest of the city of Cheyenne, the county seat of Laramie County.  Its elevation is 6,506 feet (1,983 m).  Although Horse Creek is unincorporated, it has a post office, with the ZIP code of 82061.  As of the 2010 census, Horse Creek had an estimated population of 39. Thurmont is a town in Frederick County, Maryland, United States.  The population was 6,170 at the 2010 census.  The town is located in the northern part of Frederick County (north of Frederick, Maryland, the county seat), approximately ten miles from the Pennsylvania border, along U.S. Highway 15.  It is very close to Cunningham Falls State Park and Catoctin Mountain Park, which contains the presidential retreat of Camp David.  Thurmont is also home to Catoctin Colorfest, an arts and crafts festival that draws in about 125,000 people each autumn.
Answer: 151