Fastest-growing ZIP codes in Sagadahoc County, ME

These are the 7 ZIP codes in Sagadahoc County with the fastest population growth, out of 7 with at least 1,000 residents. 04008 (Bowdoinham, 12.4%), 04086 (Topsham, 10.2%) and 04562 (Phippsburg, 6.5%) lead the list. There is no single "best" ZIP code in Sagadahoc 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 Sagadahoc County

RankZIPMailing cityPopulation changeResidentsHouseholdsResidential mailboxes
104008Bowdoinham12.4%3,1421,2851,128
204086Topsham10.2%9,7064,0114,611
304562Phippsburg6.5%2,2381,0501,071
404357Richmond4.9%3,5661,5991,641
504530Bath3.2%11,2755,4025,440
604579Woolwich1.7%3,1581,2951,341
704287Bowdoin-4.6%3,1881,317—

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; 7 of 8 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 13,347 households, on 27 carrier routes with 13,891 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 04008 on the EDDM route map

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Frequently asked questions

Which ZIP code in Sagadahoc County has the fastest population growth?
04008 (Bowdoinham), at 12.4%, among 7 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.