The location of the village, near the main road between Porvoo and Mäntsälä, has greatly influenced population growth.

The village is located just off the Porvoo border, but the distance to the city centre is about 17 kilometres.

The nearest lake is Vahijärvi in the northern part of the village, across the main road.

[5][6] In Monninkylä, the municipal services include: clinic, dentist, library, kebab pizzeria, Sale grocery store, hairdressing salon, driving school and Osuuspankki bank office.

The village is also home to Finland's only outdoor swimming pool maintained by a parish,[7] which is open from June to August.