Which ZIP code in Loudoun County has the highest share of households with children?

20105 (Aldie), at 69.3%, among 17 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

ZIP codes with the most families with kids in Loudoun County, VA

These are the 17 ZIP codes in Loudoun County with the highest share of households with children, out of 17 with at least 1,000 residents. 20105 (Aldie, 69.3%), 20148 (Ashburn, 56.3%) and 20152 (Chantilly, 54.2%) lead the list. There is no single "best" ZIP code in Loudoun County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

ZIP codes with the most families with kids in Loudoun County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	20105	Aldie	69.3%	37,639	10,830	12,112
2	20148	Ashburn	56.3%	64,021	20,839	23,360
3	20152	Chantilly	54.2%	36,674	11,047	11,498
4	20141	Round Hill	50.8%	8,359	2,553	2,759
5	20166	Sterling	43.4%	14,949	5,473	6,658
6	20164	Sterling	42.4%	43,436	12,806	13,224
7	20176	Leesburg	41.8%	51,471	16,720	18,183
8	20175	Leesburg	40.6%	34,733	12,240	12,750
9	20132	Purcellville	40.1%	19,817	6,381	6,304
10	20165	Sterling	37.9%	34,088	11,939	12,219
11	20120	Centreville	36.9%	42,896	14,578	14,831
12	20147	Ashburn	36.7%	67,692	25,178	27,861
13	20158	Hamilton	34.4%	4,979	1,580	1,591
14	20180	Lovettsville	34.1%	7,531	2,525	2,996
15	20197	Waterford	29.8%	1,825	671	834
16	20135	Bluemont	28.0%	3,585	1,389	1,335
17	20117	Middleburg	16.4%	2,790	1,263	1,164

How we ranked them

Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 17 of 20 qualify.

Which of these to mail, and why

Households with children buy tutoring, youth sports, pediatric and family dental care, child care, birthday venues and family dining. EDDM reaches every door on a route, so a higher share means more of your pieces land with families.

The top five ZIP codes on this list hold 50,742 households, on 97 carrier routes with 56,387 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 20105 on the EDDM route map

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Frequently asked questions

Which ZIP code in Loudoun County has the highest share of households with children?: 20105 (Aldie), at 69.3%, among 17 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files.
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

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