Which ZIP code in New London County has the highest share of residents who moved in during the past year?

06340 (Groton), at 22.9%, among 26 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 new movers in New London County, CT

These are the 25 ZIP codes in New London County with the highest share of residents who moved in during the past year, out of 26 with at least 1,000 residents. 06340 (Groton, 22.9%), 06320 (New London, 18.2%) and 06380 (Taftville, 18.1%) lead the list. There is no single "best" ZIP code in New London 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 new movers in New London County

Rank	ZIP	Mailing city	Moved in the past year	Residents	Households	Residential mailboxes
1	06340	Groton	22.9%	29,863	12,879	13,177
2	06320	New London	18.2%	27,703	11,808	11,724
3	06380	Taftville	18.1%	2,757	1,212	1,428
4	06382	Uncasville	16.3%	10,143	3,673	4,275
5	06360	Norwich	13.7%	37,216	15,880	16,075
6	06355	Mystic	12.2%	12,173	5,364	6,587
7	06378	Stonington	12.2%	5,555	2,708	2,402
8	06357	Niantic	11.9%	11,332	5,000	6,152
9	06384	Voluntown	10.6%	2,663	1,137	1,068
10	06415	Colchester	9.8%	16,038	6,604	6,956
11	06371	Old Lyme	9.2%	9,828	4,122	5,016
12	06365	Preston	8.9%	4,807	1,940	1,745
13	06333	East Lyme	8.8%	7,389	3,004	3,094
14	06335	Gales Ferry	8.4%	6,307	2,206	2,688
15	06375	Quaker Hill	8.3%	3,670	1,378	1,517
16	06359	North Stonington	7.9%	5,160	2,114	2,151
17	06254	North Franklin	7.9%	2,004	716	776
18	06379	Pawcatuck	7.6%	9,017	4,125	4,146
19	06385	Waterford	7.2%	15,966	6,755	7,735
20	06339	Ledyard	6.5%	9,113	3,344	3,412
21	06330	Baltic	5.9%	3,327	1,299	923
22	06420	Salem	5.6%	4,368	1,811	1,795
23	06370	Oakdale	5.4%	7,327	2,602	2,847
24	06351	Jewett City	5.3%	15,760	6,559	6,335
25	06334	Bozrah	2.4%	2,249	914	1,058

How we ranked them

Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 26 of 33 qualify.

Which of these to mail, and why

New residents are still choosing a dentist, a gym, a pizza place and a lawn service. ZIP codes with high turnover give a welcome offer more people to work on each year.

The top five ZIP codes on this list hold 45,452 households, on 86 carrier routes with 46,679 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 06340 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in New London County has the highest share of residents who moved in during the past year?: 06340 (Groton), at 22.9%, among 26 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published 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.