20147 ZIP Code, Ashburn, VA

20147 is a ZIP code in Ashburn, Virginia in Loudoun County. It covers 20 square miles of land. The closest ZIP codes are 20148, 20165 and 20164. 67,692 people live here in 25,178 households, which puts it among the most populous 1% of Virginia ZIP codes. At about 3,411 people per square mile it has suburban density, and owners and renters are mixed (68% own). Median household income is $163,904, well above the Virginia median of $93,170.

Quick facts

Key figures

MeasureValue
Residents67,692
Households25,178
Median household income$163,904
Income per person$74,947
Median age39.6
Homeowners67.9%
Median home value$718,500
Median rent$2,416
Bachelor's degree or higher68.0%
Average commute (minutes)28
Households with kids under 1836.7%
Moved in the past year12.1%
Below the poverty line4.3%
Broadband internet96.9%
Speak a non-English language at home33.4%

Household income

% of householdsValue
<$10K2.6%
$10–15K0.9%
$15–25K2.0%
$25–35K2.0%
$35–50K3.4%
$50–75K6.6%
$75–100K9.6%
$100–150K17.4%
$150–200K14.1%
$200K+41.3%

Age

% of all residentsValue
<1011.4%
10–1914.3%
20–245.5%
25–3411.6%
35–4414.5%
45–5416.0%
55–6412.4%
65–746.6%
75+7.7%

Tenure

% of housing unitsValue
Owned, with mortgage49.6%
Owned outright16.4%
Rented30.9%
Vacant3.2%

Type of building

% of housing unitsValue
Detached house35.5%
Townhome33.5%
2–4 units1.5%
5–19 units14.4%
20+ units15.0%
Mobile / other0.0%

Businesses in 20147

1,880 business establishments with 44,125 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

20147 has 45 USPS carrier routes with 27,861 residential and 1,776 business mailboxes. Open the EDDM route map.

Carrier routes in 20147

20147 has 45 USPS carrier routes (45 rural (R)) with 27,861 residential and 1,776 business mailboxes. Routes range from 300 homes (R039) to 1,064 homes (R048); the median route has 592 homes. The Census counted 25,178 households in 20147 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4996
500–74929
750–9999
1,000–1,4991
1,500+0

Best routes in 20147 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R040 — USPS business mailboxes 249, 523 homes
  2. Route R007 — USPS business mailboxes 232, 339 homes
  3. Route R014 — USPS business mailboxes 220, 329 homes
  4. Route R036 — USPS business mailboxes 158, 540 homes
  5. Route R042 — USPS business mailboxes 128, 675 homes

Select these 5 routes on the route map

Every carrier route in 20147

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R001Rural55578$173,327———
R002Rural55516$200,001+———
R003Rural6121$119,534———
R004Rural5055$200,001+———
R005Rural6101$173,899———
R006Rural5682$189,571———
R007Rural339232$196,091———
R008Rural6302$173,327———
R009Rural5560$122,109———
R010Rural6612$116,827———
R011Rural5925$173,899———
R012Rural56211$189,571———
R013Rural83448$102,116———
R014Rural329220$97,297———
R015Rural5924$200,001+———
R016Rural68332$189,571———
R017Rural6902$76,343———
R018Rural5891$183,912———
R019Rural42476$173,899———
R020Rural8626$103,866———
R021Rural5910$200,001+———
R022Rural7921$125,932———
R023Rural79518$112,127———
R024Rural56170$183,912———
R025Rural50460$200,001+———
R026Rural4971$200,001+———
R027Rural57710$125,932———
R028Rural6739$196,091———
R029Rural5091$200,001+———
R030Rural6333$200,001+———
R031Rural5741$162,670———
R032Rural7693$103,866———
R033Rural74113$122,796———
R034Rural4860$200,001+———
R035Rural53224$189,571———
R036Rural540158$200,001+———
R037Rural773106$200,001+———
R038Rural7885$200,001+———
R039Rural3000$200,001+———
R040Rural523249$200,001+———
R042Rural675128$125,932———
R045Rural75481$150,287———
R046Rural64347$161,836———
R047Rural8195$93,497———
R048Rural1,06439$189,571———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 20147 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 20147

Where it ranks

Mail every home in 20147

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 20147, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 20147 in?
20147 is a Ashburn, VA mailing address. By land area, 66% lies inside Ashburn, 14% lies inside Belmont, 5% lies inside University Center and 3% lies inside One Loudoun; the rest is outside any Census-defined city or community.
What county is 20147 in?
20147 is in Loudoun County.
What is the population of 20147?
About 67,692 people (±2,607), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 66,394.
What is the median household income in 20147?
$163,904 (±$4,562), compared with $93,170 for Virginia as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 20147?
45 USPS carrier routes with 27,861 residential and 1,776 business mailboxes (29,637 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 20147?
The closest, measured center to center: 20148 (4.4 mi, Brambleton), 20165 (4.7 mi, Cascades), 20164 (4.9 mi, Sterling), 20166 (5 mi, Dulles Town Center), 20837 (6.4 mi, Poolesville) and 20170 (6.8 mi, Herndon).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.