Sierpc County Powiat sierpecki
County
Flag Coat of arms
Location within the voivodeship
Division into gminas
Coordinates (Sierpc): 52°53′N 19°40′E / 52.883°N 19.667°E / 52.883; 19.667
Country	Poland
Voivodeship	Masovian
Seat	Sierpc
Gminas	Total 7 (incl. 1 urban) Sierpc Gmina Gozdowo Gmina Mochowo Gmina Rościszewo Gmina Sierpc Gmina Szczutowo Gmina Zawidz
Area
• Total	852.89 km2 (329.30 sq mi)
Population  (2019)
• Total	52,077
• Density	61/km2 (160/sq mi)
• Urban	17,994
• Rural	34,083
Car plates	WSE
Website	http://www.powiat.sierpc.pl

Sierpc County (Polish: powiat sierpecki) is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on 1 January 1999 as a result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Sierpc, which lies 117 kilometres (73 mi) north-west of Warsaw.

The county covers an area of 852.89 square kilometres (329.3 sq mi). As of 2019 its total population is 52,077, out of which the population of Sierpc is 17,994, and the rural population is 34,083.^[1]

Neighbouring counties

Sierpc County is bordered by Żuromin County to the north-east, Płońsk County to the east, Płock County to the south, Lipno County to the west and Rypin County to the north-west.

Administrative division

The county is subdivided into seven gminas (one urban and six rural). These are listed in the following table, in descending order of population.