As of the census of 2000, there were 658 people, 319 households, and 176 families residing in the village.
 The population density was 908.8 per square mile (352.9/km²).
 There were 437 housing units at an average density of 603.6 per square mile (234.3/km²).
 The racial makeup of the village was 96.66% White, 0.76% Native American, 0.15% Asian, 0.61% from other races, and 1.82% from two or more races.
Hispanic or Latino of any race were 2.13% of the population.

There were 319 households, out of which 20.7% had children under the age of 18 living with them, 44.5% were married couples living together, 9.1% had a female householder with no husband present, and 44.8% were non-families.
42.0% of all households were made up of individuals, and 26.6% had someone living alone who was 65 years of age or older.
 The average household size was 2.03 and the average family size was 2.77.

In the village, the population was spread out, with 19.9% under the age of 18, 8.8% from 18 to 24, 20.1% from 25 to 44, 22.3% from 45 to 64, and 28.9% who were 65 years of age or older.
 The median age was 46 years.
For every 100 females, there were 77.8 males.
 For every 100 females age 18 and over, there were 72.2 males.

The median income for a household in the village was $28,409, and the median income for a family was $38,250.
Males had a median income of $30,795 versus $21,875 for females.
The per capita income for the village was $18,153.
 About 4.8% of families and 7.8% of the population were below the poverty line, including 15.3% of those under age 18 and 7.1% of those age 65 or over.
As of the census of 2000, there were 658 people, 319 households, and 176 families residing in the village.  The population density was 908.8 per square mile (352.9/km²).  There were 437 housing units at an average density of 603.6 per square mile (234.3/km²).  The racial makeup of the village was 96.66% White, 0.76% Native American, 0.15% Asian, 0.61% from other races, and 1.82% from two or more races. Hispanic or Latino of any race were 2.13% of the population.
There were 319 households, out of which 20.7% had children under the age of 18 living with them, 44.5% were married couples living together, 9.1% had a female householder with no husband present, and 44.8% were non-families. 42.0% of all households were made up of individuals, and 26.6% had someone living alone who was 65 years of age or older.  The average household size was 2.03 and the average family size was 2.77.
In the village, the population was spread out, with 19.9% under the age of 18, 8.8% from 18 to 24, 20.1% from 25 to 44, 22.3% from 45 to 64, and 28.9% who were 65 years of age or older.  The median age was 46 years. For every 100 females, there were 77.8 males.  For every 100 females age 18 and over, there were 72.2 males.
The median income for a household in the village was $28,409, and the median income for a family was $38,250. Males had a median income of $30,795 versus $21,875 for females. The per capita income for the village was $18,153.  About 4.8% of families and 7.8% of the population were below the poverty line, including 15.3% of those under age 18 and 7.1% of those age 65 or over.
Port Sanilac, Michigan