The bus system took in just $316,000 in operating revenue and had $1.6 million in operating expenses.
The system had a net deficit of $156,728 after anticipated federal and state grant money came in under budget, Manspeaker said. That figure doesn't include a $200,000 yearly subsidy from the county's general fund.
The county's Water and Sewer Department ended the year with a $177,711 surplus, with the help of a $2.7 million subsidy from the general fund.
Manspeaker said the operating loss had dropped from $3.2 million in the year before the county took over the Washington County Sanitary District to $2.5 million last year.
County departments came in at or below their budgets with the exception of the Washington County Sheriff's Department. A boom in the inmate population and associated higher costs in food and medical care caused spending on corrections to come in $450,000 over budget.
The commissioners have already put $2.3 million of the surplus into the capital spending budget, leaving the county with an additional $2.4 million for general reserves.
The total general fund balance rose to $9.2 million. Manspeaker said that was a healthy 10 percent of the county's budget, the highest percentage since 1991.
The Washington County Regional Airport showed a net surplus of $68,263, and the Black Rock Golf Course had a surplus of $178,401.