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Metro fact page

Plumbing contractors in Baltimore-Columbia-Towson, MD

The Baltimore-Columbia-Towson, MD metro area has 582 plumbing contractors, or 2.05 per 10,000 residents.

What plumbing work involves and how it is licensed is written once on the national plumbing page. Maryland publishes no business-level licence source for plumbing, so this page shows no licensed share; the Maryland page says what it does publish.

The facts

Plumbing contractors in this metro
582
Per 10,000 residents
2.05 per 10,000
Records first appearing in the last 12 months
14
Records flagged closed in the last 12 months
4
Licensed share
Not published for this metro
There is no license source for this trade in Maryland. No plumbing record on this page is described one way or the other on the strength of a missing file.
Employment and pay for this trade
5,220 employed, $63,200 median annual wage
Occupation as the Bureau of Labor Statistics titles it: Plumbers, Pipefitters, and Steamfitters. Median hourly wage $30.38. SOC 47-2152 pools plumbers with pipefitters and steamfitters, so this employment figure and this wage cover all three occupations together and are not a plumbing-only measure.
Independent, franchise, corporate
560 independent, 15 franchise brand, 1 corporate owned, 6 awaiting chain review
Universe quality
1.52% of source records merged as duplicates, 2.58% carry no street address

Sources and dates: Foursquare Open Source Places, release August 11, 2026. Population 2,834,316, Census Bureau Vintage 2023 population estimates, as of July 1, 2023. BLS Occupational Employment and Wage Statistics, May 2025 OEWS, published May 15, 2026, SOC 47-2152.

Row definitions: methodology page.

What these numbers say about plumbing in Baltimore-Columbia-Towson

By record count, plumbing is the fourth largest of the 11 trades this site counts in Baltimore-Columbia-Towson, behind HVAC and ahead of electrical. That ordering is a property of the source data's categories rather than a judgement about which trade matters most in Baltimore-Columbia-Towson.

Per resident, Baltimore-Columbia-Towson sits close to the Maryland rate for plumbing, so the count at the top of this page reads as ordinary for the state.

The independent share of Baltimore-Columbia-Towson's plumbing records is close to the Maryland figure, so the mix of independent, franchise-brand and corporate-owned records here is ordinary for the state.

More of Baltimore-Columbia-Towson's plumbing records carry no street address than across Maryland.

Maryland publishes no business-level licence source for plumbing that a listing can be matched against, so the licensed share for Baltimore-Columbia-Towson is shown as not published rather than as zero, and no plumbing record on this page is described one way or the other on the strength of a file that does not exist.

No licence issuance or lapse figure is published for plumbing in Baltimore-Columbia-Towson, so no churn figure appears on this page rather than a zero standing in for one.

The occupational series the Bureau of Labor Statistics publishes for this trade counts 5,220 workers across Baltimore-Columbia-Towson, and this site publishes 582 plumbing records here. The two count different things, one an occupation across every employer and the other the businesses on this site, so they stand side by side rather than one against the other.

Of the Baltimore-Columbia-Towson plumbing records that are not independent, franchise brands outnumber corporate-owned locations.

Almost none of Baltimore-Columbia-Towson's plumbing records are waiting on chain review, so the independent, franchise and corporate counts above describe nearly the whole list.

More plumbing records first appeared in Baltimore-Columbia-Towson over the last twelve months than were flagged closed, so the file for this trade and metro grew. A record appears when the source learns of a business, which is a different event from a business opening.

No city inside Baltimore-Columbia-Towson differs from the metro enough on plumbing to carry a page of its own, so every record here is answered on this page.

Among the 2 Maryland metro areas this site publishes a plumbing page for, Baltimore-Columbia-Towson carries the most records per resident. The field is the metro areas this site publishes a plumbing page for rather than every metro area in Maryland.

Ordered by plumbing records per resident across every metro area this site publishes a plumbing page for, the hubs either side of Baltimore-Columbia-Towson are Madison above it and Bend below it.

Plumbing contractors, A to Z

571 publishable contractors. Ordering never depends on payment, claim status, license status, or any commercial relationship. This page shows the first 300 alphabetically; the rest are on the 1 further pages linked below, not withheld.

Other trades in Baltimore-Columbia-Towson