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Low Water Pressure in Cambridge, MA

Cambridge has 49,732 occupied homes across 5 ZIP codes, and the typical one was built in 1950. That year is the most useful single fact for working out why the water pressure is weak, because it predicts what the supply pipe is made of.
Cambridge sits 16 years older than the MA median of 1966. Of the 176 MA towns we route calls in, its housing is older than 79% of them, and by number of homes it ranks 2nd.
What 1950 tells you about the pipe in Cambridge
Housing of this vintage generally means galvanized steel still the norm, with copper appearing towards the end of the decade. A house from these years may have had part of its supply replaced and part left alone, which is why pressure can be fine in one bathroom and poor in another. More on 1950s supply pipe.
34% of occupied homes in Cambridge are owner-occupied, 43 points below the MA figure of 77%. It matters here because the run between the meter and the house belongs to the property owner, not the utility.
Median household income across Cambridge ZIP codes is $124,648.
Before calling anyone in Cambridge, check whether every tap is weak or just one. Normal supply is 45–80 psi and under 40 psi is low — how to test it in a minute. Whole house is a supply problem worth a call; one tap is usually a five-minute job you can do yourself.
Build year and occupied homes by ZIP code in Cambridge
| ZIP | Typical build year | Occupied homes |
|---|---|---|
| 02138 | 1938 | 14,239 |
| 02139 | 1938 | 16,062 |
| 02140 | 1950 | 10,030 |
| 02141 | 1977 | 7,233 |
| 02142 | 2005 | 2,168 |
Nearby towns we cover
- Jamaica Plain typical build 1938 · 12 years older
- Roslindale typical build 1938 · 12 years older
- West Roxbury typical build 1948 · same era
- Allston typical build 1947 · 3 years older
- Brighton typical build 1956 · 6 years newer
- Hyde Park typical build 1955 · 5 years newer
Worth reading for a 1950-era home
- galvanized supply pipe
- whole-house pressure loss
- pressure worse upstairs
- how to test your pressure
- low pressure on hot only
ZIP codes we route in Cambridge
- 02138
- 02139
- 02140
- 02141
- 02142
Low water pressure help near me in Cambridge
Give us your Cambridge ZIP code and what is happening. We check it against partner coverage and connect you with an independent contractor covering that area. We do not do the work and you are never charged.