Plumbing repair · Plymouth, Minnesota
Plumbing repair in Plymouth, MN
Leak, backed-up drain, no hot water, or a frozen line? The largest share of Plymouth's homes (23%) was built 1980 to 1989[1]. Request a licensed plumber who works here. Plymouth, in Hennepin County — ZIPs 55446, 55447, 55441, 55442, counts 78,942 residents (2025 estimate)[2].
Request helpDo you need an emergency plumber?
Answer a few questions to see how fast you need help.
Plymouth at a glance for plumbing
- Population (2025 est.)
- 78,942[2]-2.6% since 2020
- County
- Hennepin[2]
- Land area
- 32.7 sq mi[3]
- Decade the most homes date from
- 1980 to 1989[1]23% of housing units
- Homes built before 1980
- 33%[1]the 7th-highest share of the 15 Twin Cities–area suburbs we cover
- Homes built 1980–1999
- 42%[1]2020–2024
- Homes built 2010 or later
- 12%[1]the 6th-highest share of the 15 Twin Cities–area suburbs we cover
- Winter-storm & freeze days, hennepin zone
- 55[4]2016–2025
- Flood & flash-flood reports within 10 mi
- 31[4]11 flash floods, 2016–2025; flood-prone homes need working drainage and backflow prevention
- FEMA flood-insurance claims, local ZIPs
- 30[5]2 in the last 10 years; 17 paid
- Homes on utility gas heat
- 82%[1]gas piping work usually needs a permit and a licensed installer
Reading the Plymouth data for plumbing
Plymouth is one of the most established suburbs tracked here — 78,942 people (2025 estimate), down just 2.6% since 2020[2]. On the map that's 32.7 square miles holding 2,413 residents per square mile, the 7th densest of the suburbs here; it sits entirely in Hennepin County, with ZIP codes 55446, 55447, 55441, 55442[3].
With 12% of homes built since 2010 and 33% before 1980[1], Plymouth's plumbing runs from brand-new supply lines and fixtures to aging pipe, original valves and water heaters past their rated life.
Mail to Plymouth goes through 4 ZIP codes — 55446 (31% of the city's land), 55447 (27% of the city's land), 55441 (26% of the city's land), 55442 (16% of the city's land)[6].
The closest tracked neighbours are Minnetonka (6.2 mi S), Maple Grove (6.2 mi N) and Brooklyn Park (8.3 mi NE)[3].
33% of Plymouth's 33,552 housing units predate 1980 and 12% went up in 2010 or later[1] — the 7th-highest pre-1980 share of the 15 Twin Cities–area suburbs we cover; nearby, Minnetonka (48%), Maple Grove (26%), and Brooklyn Park (51%) predate 1980. The 42% built in 1980–1999 are at the age where original water heaters and valves get replaced.
The biggest single slice — 23% — was built 1980 to 1989, and the median home dates to 1988[1]. Neighbours from the same era tend to hit the same plumbing problems at the same time.
Freeze risk: the hennepin forecast zone logged 55 winter-storm, ice or hard-freeze days in 2016–2025, including February 2021; the latest was Dec 28, 2025[4].
Water from the sky is plumbing work too: 31 flood or flash-flood reports within 10 miles over 2016–2025[4], and FEMA logged 30 flood-insurance claims across Plymouth's ZIPs[5]. Homes that take water need working drainage, sump pumps and backflow prevention.
82% of homes heat with utility gas, and 25% of households rent[1].
Out of the 15 suburbs on this site, Plymouth has the 2nd-most flood reports nearby (31)[4].
Plymouth storm calendar
Within 10 miles of Plymouth, 2016–2025: 11 flash-flood reports and 20 flood or heavy-rain reports[4]. Peak: 97% in June, July, and September. Busiest year 2016 (15); 6 of 10 years had none. Busiest month September 2016 (13). Latest: flash-flood report, Jun 25, 2025, 3.1 mi out.
| Month | Flash flood | Flood & heavy rain | All |
|---|---|---|---|
| Jun | 2 | 2 | 4 |
| Jul | 6 | 7 | 13 |
| Aug | 1 | – | 1 |
| Sep | 2 | 11 | 13 |
Finding plumbing help around Plymouth
Requests go to Plumbing repair contractors serving the Plymouth area — ZIP codes 55446, 55447, 55441, 55442.
Before you call: before the plumber arrives
The Plymouth numbers behind this page
| Measure | Plymouth | Median of 15 | Difference |
|---|---|---|---|
| Flood reports (10 mi) | 31 | 24 | 7 more |
| Built before 1960 | 6.0% | 6.6% | 1 pts lower |
| Built before 1980 | 33% | 30% | 3 pts higher |
| Utility-gas heat | 82% | 81% | 1 pts higher |
| Renter-occupied | 25% | 25% | about the same |
| Built 2010 or later | 12% | 12% | about the same |
| Median year built | 1988 | 1988 | same as median |
Biggest gaps first. Medians are middle values across the Twin Cities–area suburbs we cover, drawn from the same sources.
| City | Flood reports | NFIP claims |
|---|---|---|
| Plymouth | 31 | 30 |
| Minnetonka 6.2 mi | 30 | 59 |
| Maple Grove 6.2 mi | 28 | 8 |
| Brooklyn Park 8.3 mi | 34 | 37 |
| Edina 10.4 mi | 25 | 92 |
| Eden Prairie 11.9 mi | 24 | 18 |
| ZIP | Claims | Paid | Busiest year |
|---|---|---|---|
| 55446 | 1 | $0 | 2002 (1) |
| 55447 | 10 | $37,256 | 2013 (3) |
| 55441 | 15 | $100,820 | 1987 (3) |
| 55442 | 4 | $23,305 | 1978 (1) |
ZIPs extend past city limits.
| Date | Type | Distance |
|---|---|---|
| Jun 25, 2025 | Flash Flood | 8.9 mi |
| Jun 25, 2025 | Flash Flood | 3.1 mi |
| Jun 16, 2025 | Flood | 9.5 mi |
| Jun 15, 2024 | Heavy Rain | 7.1 mi |
| Jul 16, 2019 | Flash Flood | 9.5 mi |
| Jul 16, 2019 | Flash Flood | 8.5 mi |
| Jul 16, 2019 | Flash Flood | 8.0 mi |
| Jul 15, 2019 | Heavy Rain | 4.3 mi |
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 491 | 1.5% | ±164 |
| 2010 to 2019 | 3,692 | 11.0% | ±453 |
| 2000 to 2009 | 4,470 | 13.3% | ±621 |
| 1990 to 1999 | 6,429 | 19.2% | ±579 |
| 1980 to 1989 | 7,557 | 22.5% | ±673 |
| 1970 to 1979 | 6,142 | 18.3% | ±540 |
| 1960 to 1969 | 2,761 | 8.2% | ±359 |
| 1950 to 1959 | 1,002 | 3.0% | ±190 |
| 1940 to 1949 | 388 | 1.2% | ±144 |
| 1939 or earlier | 620 | 1.8% | ±206 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| Measure | Value |
|---|---|
| Housing units | 33,552 |
| Detached single-family | 19,490 (58%) |
| Occupied homes | 32,253 |
| Owner-occupied | 24,216 (75%) |
| Renter-occupied | 8,037 (25%) |
| Median home value | $491,200 |
ACS 2020–2024 estimates.
| Main heating fuel | Homes | Share | Margin of error |
|---|---|---|---|
| Utility gas | 26,524 | 82.2% | ±759 |
| Electricity | 4,853 | 15.0% | ±516 |
| Bottled or tank gas (propane, butane, etc.) | 325 | 1.0% | ±172 |
| No fuel used | 205 | 0.6% | ±107 |
| Other fuel | 185 | 0.6% | ±89 |
| Wood | 78 | 0.2% | ±86 |
| Fuel oil, kerosene, etc. | 57 | 0.2% | ±56 |
| Solar energy | 26 | 0.1% | ±25 |
| ZIP (ZCTA) | Share of Plymouth's land | Share of the ZIP inside the city |
|---|---|---|
| 55446 | 31% | 100% |
| 55447 | 27% | 100% |
| 55441 | 26% | 98% |
| 55442 | 16% | 100% |
Dated heat and freeze records for the HENNEPIN forecast zone: see the county list.
plumbing questions from Plymouth homeowners
Are Plymouth homes likely to have old galvanized pipes?
Only an inspection can say, but age is the clue: 6% were built before 1960 and 33% before 1980[1].
How often do pipes freeze in Plymouth?
The record for Plymouth's forecast zone shows 55 winter-storm or freeze days over 2016–2025, in 9 different years[4].
Which ZIP codes are covered in Plymouth?
55446, 55447, 55441, and 55442[6], in Hennepin County. Nearby suburbs with their own pages: Minnetonka (6.2 mi), Maple Grove (6.2 mi), and Brooklyn Park (8.3 mi)[3].
Sources
- Census ACS 2020–2024 5-year (keyless bulk)
- Census population estimates, Vintage 2025
- Census Gazetteer 2025
- NOAA Storm Events Database
- OpenFEMA NFIP claims
- Census 2020 ZCTA–place file
Data pulled Sep 28, 2026. Full citations and method.