Zip Code 22042
Fairfax, Virginia — Fairfax County
📍 ZIP code 22042 is in Fairfax, Fairfax County, Virginia.
ZIP code 22042 is located in Fairfax, Fairfax County, Virginia. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 34,631. The area code for ZIP code 22042 is 703.
Quick Answer
Zip code 22042 is in Fairfax, Virginia (Fairfax County). It has a population of 34,631, median household income of $135,578, and median home value of $666,700.
Population
34,631
Income
$135,578
Home Value
$666,700
Climate
84°F / 23°F
About Zip Code 22042
Zip code 22042 is located in Fairfax, Virginia, within Fairfax County. Home to approximately 34,631 residents, this area sits at an elevation of 351 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 703.
The median household income is $135,578 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $666,700, and the cost of living index is 207 (107% above the national average of 100).
Summers average a high of 84°F while winters drop to 23°F. The area receives about 44 in of rain and 19 in of snow annually. The zip code covers 6.6 square miles of land area.
Key Statistics
34,631
$135,578
$666,700
Eastern (EST/EDT)
703
351 ft
6.6 sq mi
37.6
12,598
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Compare With Nearby Zip Codes
| Metric | 22042 | 22046 | 22044 | 22043 | 22027 | 22003 |
|---|---|---|---|---|---|---|
| City | Fairfax, VA | Falls Church, VA | Falls Church, VA | Fairfax, VA | Dunn Loring, VA | Annandale, VA |
| Population | 34,631 | 18,117 | 14,001 | 25,658 | 1,781 | 58,154 |
| Median Income | $135,578 | $175,446 | $100,129 | $143,836 | $250,001 | $134,109 |
| Home Value | $666,700 | $963,600 | $711,400 | $868,600 | $1,041,900 | $694,300 |
| Cost of Living | 207 | 250 | 202 | 250 | 250 | 207 |
| Median Age | 37.6 | 40.7 | 36.4 | 38.8 | 47.1 | 40.3 |
Cost of Living
100 = National Average. Fairfax's cost of living is 107% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.9x
Demographics
Zip code 22042 has a population of 34,631 people with a median age of 37.6. There are 12,598 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Fairfax (22042) population trend from 2010 to 2024
↑ 5.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
23°F
44 in
19 in
Fairfax experiences warm summers with average highs around 84°F. Winters are cool with lows averaging 23°F. The area receives about 19 in of snow per year.
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Housing & Economy
Median Home Value
$666,700
Median Household Income
$135,578
With 12,598 housing units across 6.6 square miles, 22042 has a housing density of 1,909 units per square mile. The home price-to-income ratio is 4.9x.
Location & Geography
Latitude
38.8650°
Longitude
-77.1971°
Land Area
6.6 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 22042 (Fairfax, VA) with distances:
All Zip Codes in Fairfax, VA
Other zip codes serving Fairfax:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 22042's $135,578. A way to compare Fairfax to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 22042 (Fairfax, VA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Fairfax, Virginia?
Fairfax, Virginia uses zip code 22042 along with 5 other zip codes.
What county is zip code 22042 in?
Zip code 22042 is located in Fairfax County, Virginia.
What is the population of zip code 22042?
The population of zip code 22042 is 34,631 with a median age of 37.6.
Is 22042 in Fairfax, Virginia?
Yes, zip code 22042 is in Fairfax, Fairfax County, Virginia. The area code is 703.
Frequently Asked Questions
What city is zip code 22042 in?
Zip code 22042 is in Fairfax, Virginia. It is part of Fairfax County and uses the Eastern (EST/EDT) timezone.
What is zip code 22042?
Zip code 22042 is a U.S. postal code in Fairfax, Virginia (Fairfax County). It has a population of 34,631 and covers 6.6 square miles.
What is the population of zip code 22042?
The population of zip code 22042 (Fairfax, VA) is 34,631 with a median age of 37.6. There are approximately 12,598 housing units in this area.
What is the median income in zip code 22042?
The median household income in zip code 22042 (Fairfax, VA) is $135,578 per year. The cost of living index is 207 (100 = national average).
What is the average home price in zip code 22042?
The median home value in zip code 22042 (Fairfax, VA) is $666,700. The cost of living index is 207 compared to the national average of 100.
What county is zip code 22042 in?
Zip code 22042 is located in Fairfax County, Virginia. The primary city is Fairfax.
What is the area code for zip code 22042?
Zip code 22042 in Fairfax, VA uses area code 703. It is located in the Eastern (EST/EDT) timezone.
Is zip code 22042 a good place to live?
Zip code 22042 (Fairfax, VA) has a cost of living index of 207 (100 = national average), a median household income of $135,578, and median home values of $666,700. The median age is 37.6. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 22042?
The cost of living index for zip code 22042 (Fairfax, VA) is 207, where 100 represents the national average. This area is above the national average. Median home value: $666,700.
What schools serve zip code 22042?
Zip code 22042 in Fairfax, Virginia is served by the local school district of Fairfax County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.