Basic information

| Attribute | Details | | :--- | :--- | | **Official Name** | City of Naperville | | **Common Name** | Naperville | | **Native Name(s)** | N/A | | **Nicknames** | Naper-Thrill (colloquial) | | **Motto** | Great Place to Live | | **Geographic Level** | City | | **Country** | United States | | **State/Province** | Illinois | | **Capital** | N/A | | **Government Type** | Council-Manager | | **Date Founded** | 1831 (Incorporated as village 1857, city 1890) | | **Time Zone** | Central Time (CST/CDT) | | **Latitude** | 41.7508° N | | **Longitude** | -88.1535° W | | **Elevation** | 715 ft (218 m) | | **Total Area** | 39.32 sq mi (101.84 km²) | | **Population** | ~149,540 (2020 Census) | | **Population Density** | ~3,800 per sq mi (~1,470 per km²) | | **ZIP/Postal Codes** | 60540, 60563, 60564, 60565, 60566, 60567 | | **Area Codes** | 630, 331 | | **Official Languages** | English | | **Currency** | United States Dollar (USD) | | **Demonym** | Napervillian |