Which country or map area contains Vientiane [prefecture]?
Vientiane [prefecture] is shown within Laos in the atlas dataset.

Vientiane [prefecture] is a first-level state, province or administrative region of Laos. Its approximate map centre is 18.1° north latitude and 102.6° east longitude.
Vientiane [prefecture] is shown within Laos in the atlas dataset.
It is shown in this atlas as a first-level state, province or administrative region.
Its approximate map centre is 18.1° north latitude and 102.6° east longitude.
The country capital is Vientiane.
Facts were last reviewed on 13 September 2026. Boundaries and state/province names use Natural Earth. Country reference fields use the Countries dataset. India boundary presentation follows the project’s stated Survey of India reference.