Question: What state is the only one with a majority Catholid population/
About the article "United States", section "Religion".

Candidate passages:
Bosnia and Herzegovina, being composed of three large groups, is the only European state with no ethnic majority (the largest ethnic group, the Bosniaks, accounting for 48% of population; on the question of the "Spanish people" as the majority population in Spain see below).
But many other European states have ethnic minorities which form a majority within a province or region, see multilingual countries and regions of Europe. 
Factual background and majority opinion.
The case involved the redistricting of North Carolina after the 1990 census.
North Carolina submitted to the Department of Justice a map with one majority-minority black district—that is, a district with a black majority.
The Department of Justice believed that the state could have drawn another such majority-minority district to improve representation of black voters.
The state revised its map, but the new plan had a majority-minority district that was long, winding through the state to connect various areas having in common only a large black population.
Justice Sandra Day O'Connor described the shape of the new district as "bizarre."
The court found that if a redistricting map is "so bizarre on its face that it is 'unexplainable on grounds other than race'," it must be held to the standard of strict scrutiny. 
The estimated population is 4.8 million and the population density varies from 230-1,400 people per square kilometer.
Imo state is a predominantly Igbo speaking state, with Igbo people constituting a majority of 98%. 
The following is a partial list of United States of America (U.S.) communities with Native American majority populations.
It includes United States cities and towns in which a majority (over half) of the population is Native American (American Indian or Alaska Native), according to data from the 2000 Census.
This list does not include locations in which the 2000 Census shows a plurality of the residents are Native American.
The list is organized by state and, within each state, by population size.
The percentage of each city's population that is Native American is listed in parentheses next to the city's name.
This is one of the lists of U.S. cities with non-white majority populations. 
The following are links to lists of United States cities in which a majority of the population is not white organized by majority racial group.
It should not, however, be inferred that every city not on one of the lists below has a white majority.
(There are many cities in the United States in which no racial group is in the majority.)
List of U.S. communities with African American majority populations - over 50% African American cities ranked by percentage within state List of U.S. cities with large African-American populations - over 30% African American cities ranked by percentage nationwide  List of US counties with a majority African American population  List of U.S. cities with Asian American majority populations  List of U.S. communities with Native American majority populations  List of U.S. counties with Native American majority populations  List of U.S. communities with Hispanic majority populations  List of US counties with a majority Latino population  List of U.S. cities with Hispanic majority populations  List of U.S. cities with non-Hispanic white plurality populations in 2010