Monnaz was a municipality in the Swiss canton of Vaud, located in the district of Morges.

[2] Monnaz had an area, as of 2009[update], of 1.6 square kilometers (0.62 sq mi).

Of the rest of the land, 0.15 km2 (37 acres) or 9.3% is settled (buildings or roads).

The blazon of the municipal coat of arms is Azure, a Saltire Or, two Grape bunches and as many Mullets of Five of the same.

[8] Most of the population (as of 2000[update]) speaks French (244 or 87.5%), with German being second most common (21 or 7.5%) and Swedish being third (5 or 1.8%).

[7] The age distribution, as of 2009[update], in Monnaz is; 52 children or 13.2% of the population are between 0 and 9 years old and 72 teenagers or 18.2% are between 10 and 19.

[11] About 59.8% of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

In the federal election, a total of 136 votes were cast, and the voter turnout was 57.6%.

[8] There were 141 residents of the municipality who were employed in some capacity, of which females made up 44.7% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 30.

The number of jobs in the secondary sector was 4 of which 3 or (75.0%) were in manufacturing and 1 was in construction.

In the tertiary sector; 1 was in the sale or repair of motor vehicles, 2 or 12.5% were in the information industry, 8 or 50.0% were technical professionals or scientists, .

[8] From the 2000 census[update], 64 or 22.9% were Roman Catholic, while 171 or 61.3% belonged to the Swiss Reformed Church.

In the Vaud cantonal school system, two years of non-obligatory pre-school are provided by the political districts.

[18] During the school year, the political district provided pre-school care for a total of 631 children of which 203 children (32.2%) received subsidized pre-school care.

The canton's primary school program requires students to attend for four years.