The Town of Brentwood will commemorate its 65th anniversary with a Brentwood Day celebration Saturday from 10 a.m. to 6 p.m. at Bartlett Park.

Sponsored by the Brentwood Civic Association, the events will start with a potluck dinner Friday night at 6:30 p.m. at the Brentwood Methodist Church at 39th and Tilden streets. Afterward, a panel of judges will choose "Ms. Brentwood" to be featured in Saturday morning's parade.

The parade starts at 10 a.m. at 34th Street and Windom Road. It will continue along 38th, 39th, Volta Avenue, 40th, Utah Avenue, back to 38th, and end in Bartlett Park, where the celebration begins.

"There will be carnival-type games, minitrains, dump tanks and food for sale," said Michael Callahan, chairman of the Brentwood Day Parade Committee. "We'll have the P.G. Swinger's Band for senior citizens and a country-western group, too," he said.

Clocks, brass plant stands and theater tickets are a few of the items that can be bid on during a one-hour auction beginning at 1 p.m. Other activities include roller-skating from 12:30 to 2:30 p.m. and a tennis tournament at 1 p.m. For more information, call Robert Callahan at 927-6524.CITY OF LAUREL

The Laurel City Fourth of July Committee would like to put more fire in its fireworks this year by getting more donations from local businesses, community groups and residents for its annual Independance Day celebration.

"Last year it ran us about $23,000," said Dennis Kirk, chairman of the Ways and Means Committee. "The fireworks alone this year are $11,000. The city appropriated $9,000. Naturally, we have to kick in anything else."

Kirk, one of 13 Laurel area volunteers on the Fourth of July Committee, said approximately $2,500 has been donated by businesses and organizations thus far this year. He also said booths will be rented to vendors for a small fee that will bring in some revenue.

The committee wants to provide entertainment and a large fireworks display that will compete with the adjoining communities. A performance by Bill Haley's Comets, a 50s rock group, is among the various events planned.

"It's a combination of what the city gives, what the community donates and what we raise ourselves," Kirk said of the festivities planned for the holiday. To make donations, mail checks to: Laurel Fourth of July Committee, P.O. Box 416, Laurel, Md. 20707. For more information, call Kay or John Harrison at 490-5207.CITY OF SEAT PLEASANT

The City of Seat Pleasant will soon provide a door-to-door transportation service for the city's elderly. A new 10-passenger van was recently provided by the county through the Maryland-Statewide Special Transportation Assistance Progam, administered by the Maryland Mass Transit Administration.

"We have 250 senior citizens actively involved in programs throughout the city," said Mayor Frank J. Blackwell.

The van will operate within the city limits to transport senior citizens and handicapped persons to and from medical appointments, Metro stations, local shopping and social events. City officials have not made a decision on the exact operating procedures but are considering a service very similar to the county's Call-A-Bus Service, which operates Monday through Friday, from morning to early afternoon, by appointment and order of priority.

"The main thing is that we have the van; it's in shape and it's ready to go . . . even if I have to volunteer to drive the van myself," said Blackwell.

The new service, to be called the Seat Pleasant Para-Transit Service, is tentatively scheduled to start after July 1. The fares will range from 50 cents cents to $1. For more information, call Deatra August at 336-2600.