Ontario (San Bernardino, CA)

Around Ontario ...

For comparison, Ontario has a population of 183,000 people.

The following is a sample of nearby communities based on their distance from Ontario, with the nearest first.

Montclair
(2 miles [3.2 km] to the west)
- Jump to our Gazetteer entry for Montclair
- Montclair is located in San Bernardino County
- Population from the 2020 Census: 40,600 people
- Jump to TripAdvisor's Tourism page for Montclair <2>
- Google driving directions:
- From your current location to Montclair
- From Ontario to Montclair
Racimo
(2 miles [3.2 km] to the east)
- Jump to our Gazetteer entry for Racimo
- Racimo is located in San Bernardino County
- Google driving directions:
- From your current location to Racimo
- From Ontario to Racimo
Upland
(2 miles [3.2 km] to the north)
- Jump to our Gazetteer entry for Upland
- Upland is located in San Bernardino County
- Population from the 2020 Census: 77,850 people
- Jump to TripAdvisor's Tourism page for Upland <2>
- Google driving directions:
- From your current location to Upland
- From Ontario to Upland
Guasti
(3 miles [4.8 km] to the east)
- Jump to our Gazetteer entry for Guasti
- Guasti is located in San Bernardino County
- Jump to TripAdvisor's Tourism page for Guasti <2>
- Google driving directions:
- From your current location to Guasti
- From Ontario to Guasti
Chino
(4 miles [6.4 km] to the southwest)
- Jump to our Gazetteer entry for Chino
- Chino is located in San Bernardino County
- Population from the 2020 Census: 92,290 people
- Jump to TripAdvisor's Tourism page for Chino <2>
- Google driving directions:
- From your current location to Chino
- From Ontario to Chino
Claremont
(4 miles [6.4 km] to the northwest)
- Jump to our Gazetteer entry for Claremont
- Claremont is located in Los Angeles County
- Population from the 2020 Census: 35,096 people
- Jump to TripAdvisor's Tourism page for Claremont <2>
- Google driving directions:
- From your current location to Claremont
- From Ontario to Claremont
Alta Loma
(5 miles [8 km] to the northeast)
- Jump to our Gazetteer entry for Alta Loma
- Alta Loma is located in San Bernardino County
- Jump to TripAdvisor's Tourism page for Alta Loma <2>
- Google driving directions:
- From your current location to Alta Loma
- From Ontario to Alta Loma
Pomona
(5 miles [8 km] to the west)
- Jump to our Gazetteer entry for Pomona
- Pomona is located in Los Angeles County
- Population from the 2020 Census: 149,212 people
- Jump to TripAdvisor's Tourism page for Pomona <2>
- Google driving directions:
- From your current location to Pomona
- From Ontario to Pomona
Rancho Cucamonga
(5 miles [8 km] to the northeast)
- Jump to our Gazetteer entry for Rancho Cucamonga
- Rancho Cucamonga is located in San Bernardino County
- Population from the 2020 Census: 178,849 people
- Jump to TripAdvisor's Tourism page for Rancho Cucamonga <2>
- Google driving directions:
- From your current location to Rancho Cucamonga
- From Ontario to Rancho Cucamonga
Continue List (6 more) ...
- Chino Hills
  (6 miles [9.7 km] to the southwest)
  - Jump to our Gazetteer entry for Chino Hills
  - Chino Hills is located in San Bernardino County
  - Estimated population in 2015: 78,309 people
  - Jump to TripAdvisor's Tourism page for Chino Hills <2>
  - Google driving directions:
  - From your current location to Chino Hills
  - From Ontario to Chino Hills
- Los Serranos
  (6 miles [9.7 km] to the southwest)
  - Note: The GPS coordinates that we are using for Los Serranos have been provided by the GNIS.<3> The coordinates still need to be verified.
  - Jump to our Gazetteer entry for Los Serranos
  - Los Serranos is located in San Bernardino County
- Rochester
  (6 miles [9.7 km] to the east)
  - Jump to our Gazetteer entry for Rochester
  - Rochester is located in San Bernardino County
  - Google driving directions:
  - From your current location to Rochester
  - From Ontario to Rochester
- San Antonio Heights
  (6 miles [9.7 km] to the north)
  - Note: The GPS coordinates that we are using for San Antonio Heights have been provided by the GNIS.<3> The coordinates still need to be verified.
  - Jump to our Gazetteer entry for San Antonio Heights
  - San Antonio Heights is located in San Bernardino County
- La Verne
  (7 miles [11.3 km] to the northwest)
  - Jump to our Gazetteer entry for La Verne
  - La Verne is located in Los Angeles County
  - Population from the 2020 Census: 32,160 people
  - Jump to TripAdvisor's Tourism page for La Verne <2>
  - Google driving directions:
  - From your current location to La Verne
  - From Ontario to La Verne
- Eastvale
  (8 miles [12.9 km] to the southeast)
  - Jump to our Gazetteer entry for Eastvale
  - Eastvale is located in Riverside County
  - Jump to TripAdvisor's Tourism page for Eastvale <2>
  - Google driving directions:
  - From your current location to Eastvale
  - From Ontario to Eastvale

For more communities neighboring Ontario, please visit our County-by-County Page for Ontario.

San Bernardino County ...

Ontario is located in San Bernardino County<4>.

The following counties adjoin and form the boundaries of San Bernardino County: La Paz (AZ), Mohave (AZ), Inyo, Kern, Los Angeles, Orange, Riverside & Clark (NV).

Curious and Interesting Names Near Ontario ...

It seems like there is always a nearby community with a name that seems interesting, maybe familiar or just catches our attention in some other way. We've collected some names which strike us as being curious or interesting. Our list can be found on the Tidbits & Trivia Page for Ontario.

Airports Near Ontario ...

When a trip includes a flight, we try to find an airport that best fits our travel plans.<5> To that purpose, we've assembled a list of that are relatively close to Ontario and that information can be found on the Airports Page for Ontario.

TripAdvisor Tourism Pages for Ontario ...

Looking for more information about Ontario? A good source is the TripAdvisor website and we always start with their TripAdvisor page for Ontario. Their page will give you an overview and then additional links that will help you to find lodging, restaurants and attractions.

In addition to the TripAdvisor page for Ontario, there are neighboring communities that also have TripAdvisor pages. A list of those communities can be found on our TripAdvisor Page for Ontario.

Websites We Enjoy ...

When we're planning a trip, we like to check the following websites for sights, attractions and places to visit.

For the State of California:
TripAdvisor Links for:
- California Statewide Tourism
- Ontario Tourism
- Additional neighboring communities can be found on our TripAdvisor Page for Ontario
Also of Interest:

Footnotes ...

<1>	Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Ontario.
<2>	While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<3>	The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
<4>	If you're interested in how the shape of California's counties, including San Bernardino, have changed over time, we recommend the Atlas of Historical County Boundaries.
<5>	When we are planning a trip (for example, to Ontario), we usually look for the obvious: the choice of airlines that fly into the airport, the number of flights, the connections we have to make, which car rentals are available, etc. We also look for sights and attractions that we might find between any given airport and our destination - we do love exploring. We're willing to fly into a more distant airport if we can get the services and amenities that we like. Even though our choice of airport might be inconvenient to others, it usually gives us a better trip.