What are the different types of historical maps available for Ontario?

There are a diverse and wide variety of historical maps available for Ontario. On Pastmaps.com, you'll find 38 topographic maps and aerials.

What is the oldest map of Ontario?

According to Pastmaps.com, the oldest map of Ontario is from 1900.

Where can I purchase historical maps of Ontario for my home or office?

You can purchase museum-quality prints of any of the 38 historical maps of Ontario on Pastmaps.com.

Where can I download high-res historical maps of Ontario?

You can download high-res versions of any of the 38 historical maps of Ontario on Pastmaps.com. Use them however you'd like, no subscription required.

Are there historical topographic maps available for Ontario?

According to Pastmaps.com, there are 38 historical topographic maps available for Ontario.

Is there historical aerial imagery available for Ontario?

According to Pastmaps.com, high-res modern satellite and LiDAR imagery are available for this area, but historical aerial imagery is not yet available.

Where are historical maps of Ontario sourced from?

According to Pastmaps.com, historical maps of Ontario are sourced from a variety of trusted public and private collections, including libraries and archives such as the USGS and the US Library of Congress.

1900s (20th Century) Maps of Ontario, California

Explore 38 historic maps of Ontario from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.

Whether you're researching your family's past, planning a metal detecting trip, or studying how Ontario's landscape evolved across the 1900s, these high-resolution maps are a powerful tool for exploring the history of this region.

Focus on a specific era: All maps on this page are from the 1900s, giving you a focused view of this time period.
See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.

Start exploring Ontario's history through authentic maps from the 1900s. This is your window into the past.

Ontario, CA maps

(38)

1900 Map of Cucamonga
1900 Cucamonga
1900 Print · USGS
Covers Ontario, including Fontana, Rancho Cucamonga, and other nearby areas
1901 Map of Southern California Sheet No. 1
1901 Southern California Sheet No. 1
1901 Print · USGS
Covers Ontario, including Los Angeles, Long Beach, and other nearby areas
11 unique versions available
1902 Map of Corona
1902 Corona
1902 Print · USGS
Covers Ontario, including Anaheim, Santa Ana, and other nearby areas
7 unique versions available
1903 Map of Cucamonga
1903 Cucamonga
1903 Print · USGS
Covers Ontario, including Fontana, Rancho Cucamonga, and other nearby areas
13 unique versions available
1904 Map of Southern California Sheet No. 1, 1905 Print
1904 Southern California Sheet No. 1
1905 Print · USGS
Covers Ontario, including Los Angeles, Long Beach, and other nearby areas
3 unique versions available
1933 Map of Prado
1933 Prado
1933 Print · USGS
Covers Ontario, including Anaheim, Corona, and other nearby areas
1933 Map of Ontario
1933 Ontario
1933 Print · USGS
Covers Ontario, including Rancho Cucamonga, Pomona, and other nearby areas
1941 Map of Prado
1941 Prado
1941 Print · USGS
Covers Ontario, including Anaheim, Corona, and other nearby areas
2 unique versions available
1942 Map of Corona and Vicinity
1942 Corona and Vicinity
1942 Print · USGS
Covers Ontario, including Riverside, Corona, and other nearby areas
1942 Map of Ontario and Vicinity
1942 Ontario and Vicinity
1942 Print · USGS
Covers Ontario, including Rancho Cucamonga, Pomona, and other nearby areas
2 unique versions available
1942 Map of Corona, 1947 Print
1942 Corona
1947 Print · USGS
Covers Ontario, including Anaheim, Riverside, and other nearby areas
2 unique versions available
1943 Map of Corona
1943 Corona
1943 Print · USGS
Covers Ontario, including Anaheim, Riverside, and other nearby areas
1944 Map of Cucamonga
1944 Cucamonga
1944 Print · USGS
Covers Ontario, including Fontana, Rancho Cucamonga, and other nearby areas
1947 Map of Santa Ana, 1949 Print
1947 Santa Ana
1949 Print · USGS
Covers Ontario, including San Diego, Anaheim, and other nearby areas
1949 Map of Santa Ana
1949 Santa Ana
1949 Print · USGS
Covers Ontario, including San Diego, Anaheim, and other nearby areas
1949 Map of Prado Dam, 1958 Print
1949 Prado Dam
1958 Print · USGS
Covers Ontario, including Anaheim, Corona, and other nearby areas
2 unique versions available
1950 Map of Prado Dam
1950 Prado Dam
1950 Print · USGS
Covers Ontario, including Anaheim, Corona, and other nearby areas
1953 Map of San Bernardino
1953 San Bernardino
1953 Print · USGS
Covers Ontario, including Riverside, Fontana, and other nearby areas
2 unique versions available
1953 Map of Guasti, 1955 Print
1953 Guasti
1955 Print · USGS
Covers Ontario, including Fontana, Rancho Cucamonga, and other nearby areas
2 unique versions available
1954 Map of Corona North, 1955 Print
1954 Corona North
1955 Print · USGS
Covers Ontario, including Riverside, Corona, and other nearby areas
2 unique versions available
1954 Map of Ontario, 1955 Print
1954 Ontario
1955 Print · USGS
Covers Ontario, including Rancho Cucamonga, Pomona, and other nearby areas
2 unique versions available
1954 Map of Ontario, 1959 Print
1954 Ontario
1959 Print · USGS
Covers Ontario, including Fontana, Rancho Cucamonga, and other nearby areas
5 unique versions available
1956 Map of San Bernardino
1956 San Bernardino
1956 Print · USGS
Covers Ontario, including Riverside, Fontana, and other nearby areas
1956 Map of Santa Ana
1956 Santa Ana
1956 Print · USGS
Covers Ontario, including San Diego, Anaheim, and other nearby areas
1957 Map of San Bernardino
1957 San Bernardino
1957 Print · USGS
Covers Ontario, including Riverside, Fontana, and other nearby areas

Showing maps 1-25 of 38

Top cities near Ontario

Top neighborhoods of Ontario

Frequently asked questions

What are the different types of historical maps available for Ontario?
There are a diverse and wide variety of historical maps available for Ontario. On Pastmaps.com, you'll find 38 topographic maps and aerials.
What is the oldest map of Ontario?
According to Pastmaps.com, the oldest map of Ontario is this 1900 Map of Cucamonga.
Where can I purchase historical maps of Ontario for my home or office?
You can purchase museum-quality prints of any of the 38 historical maps of Ontario on Pastmaps.com.
Where can I download high-res historical maps of Ontario?
You can download high-res versions of any of the 38 historical maps of Ontario on Pastmaps.com. Use them however you'd like, no subscription required.
Are there historical topographic maps available for Ontario?
According to Pastmaps.com, there are 38 historical topographic maps available for Ontario.
Is there historical aerial imagery available for Ontario?
According to Pastmaps.com, high-res modern satellite and LiDAR imagery are available for this area, but historical aerial imagery is not yet available.
Where are historical maps of Ontario sourced from?
According to Pastmaps.com, historical maps of Ontario are sourced from a variety of trusted public and private collections, including libraries and archives such as the USGS and the US Library of Congress.

1900s (20th Century) Maps of Ontario, California

Ontario, CA maps

Top cities near Ontario

Top neighborhoods of Ontario

Frequently asked questions

Explore Ontario by time and use case

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