Waltham, MA: Population, ZIP Codes & Nearby Cities

Waltham is an incorporated city in Middlesex County, Massachusetts. In the dataset behind this page it has an estimated population of 62,495, sits at 42.389°N, 71.242°W, and observes Eastern time. Below you will find how it ranks inside Massachusetts, which ZIP codes it uses, the closest places around it, and how far it is from major US cities.

What are the key facts about Waltham, MA?

What is the population of Waltham, MA?

Waltham has an estimated population of 62,495. That makes it the 18th largest of the 139 places we list in Massachusetts, and the 6th largest of 19 places in Middlesex County. The typical place in Massachusetts has about 5,199 residents, so Waltham is roughly 12.0 times the size of a typical neighbor in the state.

Estimates for places of this size carry wider margins of error than those for big cities, so treat the figure as a guide to scale. Our guide to understanding city population numbers explains why sources disagree.

Places in Massachusetts with a similar population include Haverhill (64,014), Malden (60,470), Weymouth (57,746), Taunton (57,464), Medford (57,341). Comparing these pages is a quick way to see how Waltham differs from communities of the same scale.

How dense is Waltham?

Waltham has about 4,903 people per square mile (1,893 per square kilometer), which we classify as suburban. Within Massachusetts, it is denser than about 86% of the listed places. Land at this level is usually a mix of single-family neighborhoods, shopping corridors and parks, where driving is common but destinations are close. Read how to interpret population density to see how we draw these lines.

What ZIP codes does Waltham use?

The postal data lists 5 ZIP codes for Waltham: 02452, 02451, 02453, 02454, 02455. Several codes in one place usually reflect separate delivery areas, post offices or large buildings with their own code. Codes beginning with 0 are assigned to the Northeast (New England, New Jersey and Puerto Rico). Learn more in our guide to how ZIP codes work or check any code with the ZIP code lookup.

What time zone is Waltham in?

Waltham is in the Eastern time zone, which is UTC−5 from Coordinated Universal Time in standard time (IANA zone America/New_York). The area observes daylight saving time, so clocks move forward in March and back in November. The nearest listed place in a different time zone is La Porte, IN, about 795 miles away, which gives a sense of how far the nearest zone boundary may be. Current local time: see the Eastern time hub. For the rules behind these zones, read US time zones explained.

Where is Waltham located in Massachusetts?

Waltham lies in the northern part of Massachusetts, at 42.389° north latitude and 71.242° west longitude. The state capital, Boston, is about 9 miles to the southeast. The closest listed place in another state is Nashua, NH, roughly 28 miles to the northwest, which shows how near Waltham is to a state line. For big-city services, the nearest place with more than 100,000 people is Cambridge, MA, 6 miles to the east.

Which cities are near Waltham, MA?

The closest listed place to Waltham is Watertown Town, MA, 3.6 miles to the east. Of the eight nearest places below, 8 are in the same county. Distances are straight-line (great-circle) miles measured between place centers; see how distance is calculated.

Which county is Waltham in?

Waltham is in Middlesex County, which has the Federal Information Processing Standards (FIPS) code 25017. The county contains 19 places in our data, 16 of which have their own page here and 3 smaller communities that appear only in county and state lists. Other places in the county include Cambridge (118,927), Lowell (110,997), Newton (88,414), Somerville (81,360), Framingham (74,416). Codes like this one help separate places that share a name; see the guide to counties and FIPS codes.

How far is Waltham from major US cities?

Among six major hubs, Waltham is closest to New York, NY at about 182 miles and farthest from Los Angeles, CA at about 2,588 miles in a straight line. Road distances are usually 10 to 30 percent longer. Try the distance calculator for any other pair.

Are there other places called Waltham?

Yes. Our data lists 1 other place named Waltham: Waltham, MN (150). When you search for Waltham, add the state or county so you land on the right one. This page covers the Waltham in Middlesex County, Massachusetts.

Planning a move to Waltham?

If you are weighing Waltham, start with the practical numbers: how far it is from where you live, whether it changes your time zone, and how its size and density compare with your current city. Use the distance calculator to measure the trip from where you live. The radius search tool lists every place within any distance of it. Our checklist for comparing cities explains what to check next.

Where to go next

Population and density come from a compiled dataset and are estimates. They may differ from official Census Bureau counts. Verify important figures at census.gov.