The most reliable source for locating your voting district is your state's voter registration office. Visit the agency's website or call the office directly to inquire about your specific voting district.
Each state maintains an agency that manages voter registration. In California, this task falls under the Secretary of State's office. In New York, voter registration is handled by the State Board of Elections. After you locate the state's agency, check the website for a voting district directory and enter your address. If there is no directory, call the office and provide your physical address. A representative should provide you with your voting district information.
The U.S. House of Representatives website also provides specific voting district information. Enter your ZIP code, and the site lists your voting district information, along with the names of your current representatives.