|Maryland House of Delegates District 19|
| Term in office began|
January 14, 1987
| Term in office ended|
January 12, 2011
Heller has worked as a Management and Budget Specialist with Montgomery County Public Schools.
He is a member of the Maryland Educators Caucus, Maryland Labor Caucus, Maryland Bicycle and Pedestrian Caucus, Maryland Fire, Rescue, and Emergency Medical Services Caucus, Southern Regional Education Board, and the Maryland Green Caucus.
- Oversight Committee on Pension
- Subcommittee on Capital Budget
- Subcommittee on Education and Economic Development (Vice Chair)
- Federal Relations (Chair)
- Management of Public Funds (Chair)
Heller did not run for re-election in 2010.
On November 7, 2006, Henry Heller ran for District 19 of the Maryland House of Delegates, winning the first of three seats, beating Benjamin Kramer, Roger Manno, John Joaquin, Thomas Hardman, and Tom Masser. 
Henry Heller raised $25,995 for his campaign.
|Maryland House of Delegates, District 19|
|Henry Heller (D)||24,928||23.6%|
|Benjamin Kramer (D)||24,707||23.3%|
|Roger Manno (D)||24,598||23.2%|
|John Joaquin (R)||10,647||10.1%|
|Thomas Hardman (R)||10,474||9.9%|
|Tom Masser (R)||10,348||9.8%|
In 2006 Henry Heller collected $25,995 in donations. 
His three largest contributors in 2006 were:
|McGeo Food & Commercial Workers Local 1994||$1,250|
|Maryland State Teachers Association||$1,000|
After 24 years in the General Assembly, Heller decided not to run for another term in 2010.
- Maryland House of Delegates - Rep. Henry Heller
- Legislative profile from Project Vote Smart
- Biography from Project Vote Smart
- Campaign contributions: 2008
|Maryland House of Delegates District 19
1987–January 12, 2011
| Succeeded by|
Bonnie Cullison, Sam Arora
State of Maryland
|State executive officers||
Governor | Lieutenant Governor | Attorney General | Secretary of State | Comptroller | Treasurer | Superintendent of Education | Commissioner of Insurance | Secretary of Agriculture | Secretary of Natural Resources | Secretary of Labor, Licensing and Regulation | Chairman of Public Service Commission |