Size is not all that matters. But still, we would love to know how big San Mateo in California is. Here is the answer:
San Mateo, California covers an area of 41.14 square kilometers (15.88 square miles).
With 97,207 people living in San Mateo that comes to a population density of 2362.83 inhabitants per square kilometer (6121.35 / sq mi)
As a reference: The 8,398,748 people living in New York City are crammed onto 1214 sq km (468.73 sq mi), which results into a population density of 6918 inhabitants per square kilometer (17918 / sq mi).

San Mateo ( SAN mÉ™-TAY-oh; Spanish for ‘”Saint Matthew”‘) is a city in San Mateo County, California, approximately 20 miles (32 km) south of San Francisco, and 31 miles (50 km) northwest of San Jose. San Mateo had an estimated 2019 population of 104,430. It has a relatively hot climate, and is known for its rich history. The biggest economic contributors to the city include the Medical Center, one of the local school districts, and Sony’s Sony Interactive Entertainment division. Finally, being in the center of the San Francisco Bay Area, it has many ways to travel back and forth beween the major cities of that area.
Cities with a similar size as San Mateo
If you want to check which cities have a similar size as San Mateo, California, here you go:
- Stockbridge, Georgia with a size of 34.44 square kilometers (34.44 sq mi), population: 25,636
- Gilroy, California with a size of 41.83 square kilometers (41.83 sq mi), population: 48,821
- Fairmont, Minnesota with a size of 43.82 square kilometers (43.82 sq mi), population: 10,666
- Gainesville, Texas with a size of 50.07 square kilometers (50.07 sq mi), population: 16,002
- Freeport, Texas with a size of 44.19 square kilometers (44.19 sq mi), population: 12,049
- Pekin, Illinois with a size of 39.94 square kilometers (39.94 sq mi), population: 34,094
- Havelock, North Carolina with a size of 45.72 square kilometers (45.72 sq mi), population: 20,735
- West Lafayette, Indiana with a size of 35.77 square kilometers (35.77 sq mi), population: 28,778
- Allentown, Pennsylvania with a size of 46.69 square kilometers (46.69 sq mi), population: 118,032
- Lake Forest, Illinois with a size of 44.66 square kilometers (44.66 sq mi), population: 20,059
Cities with a similar population density as San Mateo
Other cities that have a similar population density as San Mateo, California are:
- Oak Park, Michigan with a population density of 2,241 people per sq km (5,809 / sq mi).
- Springdale, Ohio with a population density of 2,258 people per sq km (5,845 / sq mi).
- Lake Worth Beach, Florida with a population density of 2,022 people per sq km (5,234 / sq mi).
- Miami, Florida with a population density of 2,918 people per sq km (7,557 / sq mi).
- New Port Richey, Florida with a population density of 2,197 people per sq km (5,697 / sq mi).
- South El Monte, California with a population density of 2,726 people per sq km (7,058 / sq mi).
- Baltimore, Maryland with a population density of 2,609 people per sq km (6,758 / sq mi).
- Margate, Florida with a population density of 2,264 people per sq km (5,862 / sq mi).
- Milwaukee, Wisconsin with a population density of 2,392 people per sq km (6,197 / sq mi).
- West Fargo, North Dakota with a population density of 2,158 people per sq km (5,593 / sq mi).
Cities with a similar population size as San Mateo
Here a list of cities that have a similar number of inhabitants like San Mateo, California:
- Trenton, New Jersey with a population of 84,913 people
- Ogden, Utah with a population of 83,793 people
- Flint, Michigan with a population of 100,515 people
- Green Bay, Wisconsin with a population of 104,057 people
- Westland, Michigan with a population of 84,094 people
- Boulder, Colorado with a population of 108,090 people
- Waukegan, Illinois with a population of 89,078 people
- Albany, New York with a population of 100,104 people
- Rio Rancho, New Mexico with a population of 87,521 people
- Roseville, California with a population of 104,655 people
