PlainZIP

Chelmsford, MA

Single-footprint Census roll-up for Chelmsford, MA: 1 USPS ZIP, population 24,911. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet CHELMSFORD-MA · Chelmsford, MA 1 ZIPs · 24,911 pop · #1165/25278 · Middlesex County

INC-TOP · RANK-TOP · PHOTO-FINISH · BOOK-ONE · OWN-MID · POP-TOWN · SPREAD-UNK · HOME-HIGH

  • INC-TOP $140,050
  • RANK-TOP #1165/25278
  • PHOTO-FINISH ≈ Natick
  • BOOK-ONE 1 ZIP
  • OWN-MID 82% owners
  • POP-TOWN 24,911
  • SPREAD-UNK Single-ZIP book
  • HOME-HIGH $619,700

Nearest income peer: Natick, MA ( $1,487 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Chelmsford

Lowest/highest poles plus county-sharing cities nearest Chelmsford on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Chelmsford, MA sits among US cities with a top-decile household income, on a town-scale population base, across a single-ZIP footprint.

Top 5%
household income vs 25,278 US cities
24,911
city population (Census)
1
USPS ZIP codes covered
$140,050
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $140,050 and home value $619,700 should be read as near-neighborhood numbers ; bachelor's attainment averages 55.6%.

Owner-occupancy sits in a mixed band (82.3%) - check the ZIP page's tenure split before treating Chelmsford as a pure owner town.

Within Massachusetts, Newburyport is the closest lower-income city and Dighton the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Chelmsford.

Population concentration

One ZIP, 01824, is all of Chelmsford

There is no split to weigh here: 01824 holds every one of Chelmsford's 24,911 ACS residents. City-level and ZIP-level numbers on this site are the same number twice, check the ZIP page for the income/tenure/commute breakdown.

Census ZBP business roll-up

Dense ZBP book packed into Chelmsford's one ZIP

Citywide ZBP: 844 establishments, 20,094 employees , annual payroll $1,440,267k (~34 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 01824 (844 units) ; leading NAICS Health care and social assistance (133) · also Professional, scientific, and technical services · Construction .

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ZIP Codes in Chelmsford, MA

These ZIP codes sit in Middlesex County, which covers 81 ZIP codes in all; 1 of them fall in Chelmsford. See the Middlesex County roll-up →

Chelmsford sits in the upper half of Middlesex County on income: Lowell, Cambridge and Somerville report less, while Arlington reports more. Lowell marks the far end of that range at $78,949, 44% below Chelmsford.

ZIP Code Population Median income Establishments Density
01824 24,911 $140,050 844 542
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Chelmsford roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Chelmsford, .