But Rep. Anthony DiFruscia, R-Salem, thinks a change in pay could help change the demographics.
"There appears to be an overabundance of male-over-65s, which I happen to fall into," said DiFruscia, who is sponsoring a bill to change the $100-a-year legislative pay to $100 a week.
While New Hampshire legislators are reimbursed for mileage, the long hours and time away from home cost many lawmakers far more than they earn from serving, DiFruscia said. That's why many full-time workers - from firefighters to bank tellers to machinists - simply can't afford to serve in the House of Representatives or the Senate, he said.
"You've got to have a few bucks (to serve)," he said.
But many on the New Hampshire political scene see the Granite State's virtually volunteer Legislature as a source of pride.
"Instead of some fat cat thinking, you know, 'OK, this is a career,' it's not a career (in New Hampshire)," said Rep. Gene Charron, R-Chester. "It's got to be a love for your state."
New Hampshire's Legislature is huge. With 400 members in the House and 24 members in the Senate, it's the third-largest lawmaking body in the English-speaking world.
It's also the lowest-paid Legislature in the country, according to Tim Story of the National Conference of State Legislatures. Many lawmakers, like Charron, say the low pay adds to New Hampshire's volunteer ethos.
And DiFruscia - who served in the Massachusetts House of Representatives before he started his five terms in New Hampshire - doesn't want to change that.
"I don't believe the New Hampshire Legislature should be anything near the Massachusetts Legislature," he said.
In Massachusetts, the average lawmaker makes about $58,000 a year.
Even if DiFruscia's bill passes - it would require a statewide referendum because the $100 paycheck is mandated by the state constitution - state lawmakers would still be among the lowest paid in the country.
But New Hampshire doesn't only have one of the lowest-paid Legislatures, it's also one of the most demographically unrepresentative. And that's one thing DiFruscia hopes to change.
A study three years ago by the National Conference of State Legislatures found New Hampshire's members are the oldest in the country, Story said. But New Hampshire residents, on average, are the youngest in New England, according to U.S. Census data.
More than 60 percent of New Hampshire House members are over the age of 60, while only 15.8 percent of New Hampshire's overall population is that old, according to information from the House clerk's office and the U.S. Census.
The oldest House member - Angeline Kopka, D-Nashua - is in her 90s. The majority of members - 239 of them - are between the ages of 60 and 89, the clerk's office reported.
Just 30 percent of House and Senate members are women, according to a tally by the National Conference of State Legislatures. But, according to the U.S. Census estimate for 2006, 51 percent of New Hampshire residents are women.
Beyond that, many of the House and Senate members are not actively employed.
Forty-seven percent of House members are retirees, the clerk's office reported. Three percent are homemakers and another 1.5 percent are students, according to the clerk's office.
That leaves less than 50 percent of House members working full or part time. And, among those, many are business owners.
House Clerk Karen Wadsworth said lawyers, teachers and school administrators make up a substantial portion of the legislative body, but many others own small businesses.
Other jobs - from mail carriers to factory workers - aren't represented. There is one waiter.
But even while DiFruscia hopes to change some of those numbers, the state might never reach a completely representative sample of the state population.
"It's still not going to be this perfect, demographic picture of your state. I don't know any state that has that ideal," said Story of the National Conference of State Legislatures.
But Charron thinks that age, and the experience that goes with it, are a net benefit for New Hampshire residents.
"They're older, but they've got a view on life and a perspective," he said. "The guy who used to be a farmer, the guy who used to drive a milk truck ... you're still talking a lot of talent up there."
Charron himself, a former superintendent of the Rockingham County Department of Corrections, often uses his expertise in that area in his work on the Criminal Justice and Public Safety Committee.
Sen. Mike Downing, R-Salem, agreed that the Legislature isn't representative of the population as a whole. But, he said, the alternative is much worse.
"I think you get a better representation of people (in New Hampshire), of regular people," he said. "You tend to get more professional politicians down in Massachusetts."
Downing - a retired state police officer and owner of a laundry business - said he will look to voters to decide whether he deserves a raise.
The average New Hampshire lawmaker
Age: 60.7 years old
How much do legislators get paid?
New Hampshire: $100 a year
Vermont: $600 a week, while in session
Massachusetts: $58,000 a year
Maine: $12,713 a year, with $38 a day housing and travel stipend, plus $32 a day for meals while in session
New York: $79,500 a year
California: $139,098 a year, plus $162 for each day the Legislature is in session
New Mexico: No regular pay, but $142 for each day in session
Source: National Conference of State Legislatures