| Difficult Run | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | USA Virginia#USA |
| Pushpin Map Caption: | Location within the state of Virginia |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Fairfax |
| Unit Pref: | Imperial |
| Area Land Km2: | 21.70 |
| Population As Of: | 2020 |
| Population Total: | 10,600 |
| Population Density Km2: | 488.5 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 38.902°N -77.347°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Area Land Sq Mi: | 8.38 |
| Population Density Sq Mi: | 1264.9 |
Difficult Run is a census designated place in Fairfax County, Virginia, United States.[1] The population was 10,600 at the 2020 census.[2] The CDP has a land area of 8.38 square miles.
Difficult Run first appeared as a census designated place in the 2020 U.S. Census.[3]
At the 2020 census (some information from the 2022 American Community Survey) there were 10,600 people, 3,519 housing units and 3,277 households residing in the CDP. The population density was 1264.9/mi2. The average housing unit density was 419.9/mi2. The racial makeup of the CDP was 73.27% White, 1.45% African American, 0.14% Native American, 14.80% Asian, 0.03% Pacific Islander, 1.25% from other races, and 9.06% from two or more races. Hispanic or Latino of any race was 5.62% of the population.[4]
Of the households, 89.3% were married couple families, 3.8% were a male family householder with no spouse, and 6.3% were a female family householder with no spouse. The average family household had 3.27 people.
The median age was 45.6, 27.6% of people were under the age of 18, and 17.7% were 65 years of age or older. The largest ancestry is the 18.2% who had English ancestry, 15.0% spoke a language other than English at home, and 12.9% were born outside the United States, 83.1% of whom were naturalized citizens.
The median income for a household in the CDP was $250,000. 8.1% of the population were military veterans, and 82.5% had a batchelor's degree or higher. In the CDP 0.8% of the population was below the poverty line, none of those under age 18 and 0.5% of those age 65 or over, with 0.9% of the population without health insurance.