Which ZIP code in Worcester County has the fastest population growth?

01031 (Gilbertville), at 47.7%, among 78 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.

Fastest-growing ZIP codes in Worcester County, MA

These are the 25 ZIP codes in Worcester County with the fastest population growth, out of 78 with at least 1,000 residents. 01031 (Gilbertville, 47.7%), 01610 (Worcester, 38.2%) and 01566 (Sturbridge, 31.7%) lead the list. There is no single "best" ZIP code in Worcester County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Fastest-growing ZIP codes in Worcester County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	01031	Gilbertville	47.7%	1,676	664	216
2	01610	Worcester	38.2%	30,444	9,744	8,044
3	01566	Sturbridge	31.7%	7,362	2,876	2,726
4	01602	Worcester	18.3%	27,092	10,303	9,218
5	01451	Harvard	16.0%	5,487	1,900	1,993
6	01581	Westborough	15.3%	21,944	7,964	8,622
7	01606	Worcester	14.8%	22,844	9,192	8,831
8	01519	Grafton	14.4%	8,058	2,815	2,700
9	01560	South Grafton	13.4%	4,984	1,967	1,982
10	01510	Clinton	11.7%	15,563	6,758	6,795
11	01523	Lancaster	10.4%	8,606	2,960	2,548
12	01608	Worcester	10.3%	4,932	2,336	2,512
13	01436	Baldwinville	10.3%	3,720	1,327	1,163
14	01740	Bolton	8.3%	5,737	1,976	2,020
15	01473	Westminster	7.8%	8,374	3,295	3,202
16	01543	Rutland	7.7%	9,353	3,185	3,440
17	01605	Worcester	7.2%	30,579	11,722	11,116
18	01520	Holden	7.2%	16,912	5,978	6,170
19	01505	Boylston	7.0%	4,948	1,966	2,122
20	01607	Worcester	6.6%	8,706	3,549	3,675
21	01550	Southbridge	6.2%	17,928	7,260	7,356
22	01503	Berlin	6.2%	3,378	1,447	1,489
23	01515	East Brookfield	6.2%	2,166	918	750
24	01757	Milford	6.0%	30,609	11,313	12,141
25	01603	Worcester	5.8%	20,868	8,010	7,545

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 78 of 86 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 25,487 households, on 44 carrier routes with 22,197 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 01031 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Worcester County has the fastest population growth?: 01031 (Gilbertville), at 47.7%, among 78 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

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