Labor's Warren Snowdon has declared victory in the Northern Territory seat of Lingiari, eleven days after the federal election.

Figures from the Australian Electoral Commission show Minister Snowdon is just over 800 votes ahead of the Country Liberal's Tina MacFarlane, who is yet to concede defeat.

Mr Snowdon says it's a narrow victory and it highlights the changing demographics in the Northern Territory.

"I'm very thankful for the people of Lingiari for showing their confidence in me by returning me," he said.

"People have different views, different populations, and there is a significant population turnover in the seat of Lingiari."

Mr Snowdon suffered a 2.8 per cent swing against him, that he said wasn't unexpected.

"If you look at the voting trends over the last decade, they've been tightening," Mr Snowdon said.

"We had a significant national swing against us, 3.5 per cent on primaries.

"The swing against me was a lot less than that and we had a swing towards us on two-party-preferred.

"So the Northern Territory was very different from the rest of Australia.

"We got a significant swing against us in the rural area outside of Darwin, a swing against us in Alice Springs, although not a large one, and we got a very strong swing towards us in the bush."

Lingiari covers about 99 per cent of the Northern Territory excluding Darwin and Palmerston. Voter turnout was 88.3 per cent.

Mr Snowdon has held the seat since 1987, with the exception of one term.