placestats

Congregations per 10,000 people and Safety score

A county is not a congregation. Counties where more people are counted as adherents (members of a religious group) also tend to differ on the other measure, and that is all. It does not follow that the adherents are the people with the different score. Making that leap is called the ecological fallacy: reading a pattern across places as a fact about individual people. It is as easy to fall into here as with the voting pairs. Two things about the counting matter too. Adherents are counted where their congregation meets, not where they live, so thirty very small counties exceed 100%. And a denomination that did not report is missing, not zero. That undercounts membership most where churches are least formally organised.

Across 2,086 counties, Congregations per 10,000 people and Safety score have a link of -0.57, on a scale from −1 (opposite) to +1 (in step). But compare places with the same population density, income and education, and a weak link of -0.26 remains. Most of the first figure came from both measures following how urban, rich and educated a place is, not from a link with each other.

Mostly gone after adjusting

Every place, plotted

One dot for each place reporting both measures. Hover over or tap a dot to see its name and values. The thin line is the straight line that best fits the dots. The bold line, shown for counties, is the link after adjusting for density, income and education. A dot far from the lines is a place that does not follow the pattern.

Loading every place…

What each measure is

Congregations per 10,000 people

How many separate congregations a place has per ten thousand residents. That is a different question from how many people belong. Rural counties have many small churches, and cities have fewer large ones.

· Religion Census 2020 files; 2010 from the ARDA, RCMSCY10 and RCMSST10

Safety score

Deaths from violence and injury (guns, crashes and overdoses), flipped so higher is safer. Homicide, suicide, drunk-driving and total injury deaths are left out, since they would count the same deaths twice. Gun deaths already include most homicides and suicides, and injury deaths include all four.

· derived from 4 measures (BRFSS, CHR)

Highest and lowest

Where each measure is highest and lowest among the places reporting both (2023), with the other measure beside it. This is shown for every size of place where both are published. Metro-area values are added up from their counties. A measure that cannot be added up across counties, such as a middle value (median), has no metro figure. Counts are shown per 1,000 residents, since raw totals would only list the largest places. Cities and towns and ZIP codes are shown where the Census survey or the CDC publishes them; most other sources stop at the county. They are shown for places of 5,000 residents or more, and only where the survey’s margin of error is small enough for the figure to be usable. The CDC publishes its health estimates for cities in a version adjusted for age, so places with older or younger people can be compared fairly, but not for ZIP codes.

Counties

By congregations per 10,000 people

Congregations per 10,000 peopleSafety score
Highest
Pocahontas County, WV63.5-1.8
Ouachita County, AR61.8-0.378
Wilcox County, AL58.5-4.61
Fayette County, AL55.1-0.426
Leon County, TX54.7-1.83
Lowest
Ocean County, NJ3.630.682
Kendall County, IL3.640.935
Bronx County, NY3.960.298
Broomfield County, CO4.050.936
Richmond County, NY4.050.893

By safety score

Congregations per 10,000 peopleSafety score
Highest
Arlington County, VA5.031.4
Loudoun County, VA4.921.39
Madison County, ID14.91.38
Story County, IA10.71.29
Fairfax County, VA6.171.29
Lowest
Big Horn County, MT32-5.15
Phillips County, AR38.6-4.96
Todd County, SD23.6-4.82
Oglala Lakota County, SD17.6-4.61
Wilcox County, AL58.5-4.61
States

By congregations per 10,000 people

Congregations per 10,000 peopleSafety score
Highest
Arkansas24.7-0.779
Mississippi24.3-1.82
West Virginia22.7-1.48
South Dakota21.9-1.23
Alabama21.4-0.771
Lowest
Nevada4.96-0.00638
California5.960.68
Massachusetts6.20.153
Rhode Island6.450.536
New Jersey6.540.577

By safety score

Congregations per 10,000 peopleSafety score
Highest
Hawaii9.790.788
Washington8.040.756
Minnesota10.50.747
California5.960.68
Oregon9.610.628
Lowest
Mississippi24.3-1.82
Kentucky18.1-1.52
West Virginia22.7-1.48
Missouri14.7-1.37
Montana16.3-1.23
Metro areas

By congregations per 10,000 people

Congregations per 10,000 peopleSafety score
Highest
Camden, AR66.1-1.15
Arkadelphia, AR46.2-0.751
Magnolia, AR43.4-1.16
El Dorado, AR41.5-0.921
Forrest City, AR39-1.98
Lowest
Las Vegas-Henderson-North Las Vegas, NV4.20.321
San Jose-Sunnyvale-Santa Clara, CA4.891.32
Reno, NV5.15-0.0617
San Diego-Chula Vista-Carlsbad, CA5.30.922
Riverside-San Bernardino-Ontario, CA5.310.412

By safety score

Congregations per 10,000 peopleSafety score
Highest
Ames, IA12.11.47
Iowa City, IA9.291.41
State College, PA13.41.38
McAllen-Edinburg-Mission, TX6.821.37
Urban Honolulu, HI7.771.37
Lowest
Greenwood, MS33.4-4.26
Greenville, MS29.4-3.93
Lumberton, NC25.9-3.33
Española, NM22.3-2.61
Selma, AL33.3-2.61

Counties furthest from the pattern

Compared with the straight line that best fits all 2,086 counties: the five with far more safety score than their congregations per 10,000 people would suggest, and the five with far less.

Congregations per 10,000 peopleSafety score
Above the line
LaGrange County, IN47.20.82
Ouachita County, AR61.8-0.378
Hempstead County, AR46.80.126
Fayette County, AL55.1-0.426
Ashley County, AR50.9-0.367
Below the line
Oglala Lakota County, SD17.6-4.61
Todd County, SD23.6-4.82
Big Horn County, MT32-5.15
Baltimore city, MD12.4-3.63
Phillips County, AR38.6-4.96

Two series, one county

Both measures over time for a county you pick. The two charts are stacked, so they share only the years along the bottom. You can pick from the thirty largest counties reporting both. This panel covers 2010–2024, and a measure published only once shows as a single dot.

Loading…

Every version of the link

Each row measures the same link, from −1 to +1, in a different way. If the rows mostly agree, the link does not depend on one choice of method.

Before adjusting for anything-0.5752,086 counties reporting both
After adjusting for density, income and education-0.255the part of the link that is not just how urban, rich and educated a place is
Also adjusting for population size-0.212size taken out as well as density
Also comparing only within each state-0.161each county is compared only with others in its own state, so this is no longer a comparison between states
Giving bigger counties more weight-0.267the adjusted link for the average resident rather than the average county. With this weighting, the data counts for about 271 equally weighted counties
Middle value inside single states-0.482the link worked out inside each of 33 states with at least 20 counties reporting
Using ranks, after adjusting-0.170uses each county’s rank, not its value, so a few extreme counties cannot create the link

How much to believe it

Could it be chance?

The p-value is the chance of seeing a link this strong if there were really none. A value of 0.05 or less means the link is unlikely to be chance. Very small values are written in short form: 3.1e-16 means 0.00000000000000031, and the bigger the number after “e-”, the smaller the value. Treating every county as a separate case gives p = 3.3e-32. But counties in the same state tend to resemble each other, so the better figure allows for that: p = 1.7e-5. The site tested 20,910 pairs, and testing so many turns up some flukes. The q-value allows for that too. For this pair it is 1.4e-31.

Do nearby places look alike?

Moran’s I measures how much nearby places look alike: 0 means no map pattern, and higher means neighbours are more similar. For the part of each county that the adjustment leaves unexplained, it is +0.39 (p = 0.001). That unexplained part still clusters on the map. So some regional factor shared by both measures is not accounted for.

Did they change together?

Not measurable: at least one of these is published for too few of the years a change needs (2014–2019 or 2019–2023), or for too few counties in both.

Related pairs

Association only. Nothing here shows that either measure changes the other. This describes counties, not the people in them. Two measures going together across places does not mean the same people have both. How the US county data works · Explore Congregations per 10,000 people and Safety score