Large-scale boundaries of urban areas in the North - Pas-de-Calais (in 2010)

An urban area or "large urban area" is a group of municipalities, contiguous and without an enclave, consisting of an urban cluster (urban unit) with more than 10,000 jobs, and rural municipalities or urban units (peri-urban crown) where at least 40% of the resident population with a job works in the cluster or in municipalities attracted by it. Zoning in urban areas 2010 also distinguishes between: - "medium-sized areas", a group of municipalities, contiguous and without an enclave, consisting of a cluster (urban unit) of 5 000 to 10 000 jobs, and rural municipalities or urban units where at least 40% of the resident population with a job works in the cluster or in municipalities attracted by it. - "small areas", a group of municipalities, contiguous and without an enclave, consisting of a cluster (urban unit) of 1 500 to 5 000 jobs, and rural municipalities or urban units where at least 40% of the resident population with a job works in the cluster or in municipalities attracted by it.