The town closest to the California border is likely Needles, located in San Bernardino County. It lies directly along the Colorado River and is situated just a few miles from the border with Arizona. Needles serves as a gateway for travelers heading into California from the east. Another town worth mentioning is Blythe, which is also near the border, but Needles is typically recognized as the closest.
Yuma
Del Rio, TX
Arizona, Nevada and Oregon are the states that border on California
The closest town to Thackerville, OK is Gainesville, Texas, located just across the border. It is about 9 miles away from Thackerville.
The closest US border town to Guadalajara is Laredo in Texas. It is located approximately 320 miles north of Guadalajara and is a common crossing point for travelers between Mexico and the United States.
Sutter's Fort, California. Closest modern day town = Coloma, CA
Quartzsite, Arizona, is the closest town to halfway between Mesa and Palm Desert.
Niagara falls, i am supposing your asking about an American city, closest Mexican city would be Juares. closest begique city would be Oust end. and depending on what part of the US your coming from aswell. Juneau Alaska is close to the border.
The closest town to the most westerly part of the state of California is Cape Mendocino. This area is located in the county of Humboldt and has been in existence since the 16th century, at least.
The town in Massachusetts closest to Loudon, New Hampshire, is Fitchburg. It is situated approximately 35 miles to the south of Loudon, making it the nearest significant town across the state border. Other nearby towns in Massachusetts include Leominster and Gardner, but Fitchburg is the closest.
Buffalo Bill's and Whiskey Pete's in Primm, NV are at the Nevada-California border in southern Nevada. Boomtown in Verdi, NV is at the Nevada-California border in northern Nevada.
The Canadian border is closest to Mount Rainier. Specifically, the northern side of the mountain is closest to the Canadian border.