placestats

Republican share of the two-party vote, 2016 and Material security score

A county is not a voter. Read either way, this says one thing and no more. Counties that voted more Republican also tend to differ on the other measure, and counties that voted less Republican tend to differ the other way. It does not follow that the people who voted that way 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 the most common misuse of exactly this data. How a county votes also goes so closely with its density, age and education that much of what looks political here is really those. That is what the adjusted figures are for. The vote shares run from 2000 to 2024, and the links here are measured in 2023.

Where Republican share of the two-party vote, 2016 is higher, Material security score tends to be higher. The link is moderate: +0.49 across 3,066 counties, on a scale from −1 (opposite) to +1 (in step). That figure compares places with the same population density, income and education, so those differences can't explain it. It holds inside states too. Measured separately within each of 39 states, the middle value of the link is +0.18.

Holds 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.

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What each measure is

Republican share of the two-party vote, 2016

The Republican candidate's share of the votes for the two main parties in the 2016 presidential election. Third-party votes are left out, so they do not push it up or down.

MIT Election Data and Science Lab · MIT county presidential returns

Material security score

Poverty, child poverty, income inequality, and four basic-needs measures from CDC PLACES: food, housing, utilities and transport. It is flipped so higher means less hardship, which is why it is named for security, not for what it counts.

· derived from 9 measures (ACS, BRFSS, CDC, SAIPE)

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 republican share of the two-party vote, 2016

Republican share of the two-party vote, 2016Material security score
Highest
Garfield County, MT95.10.193
Banner County, NE94.91.19
McPherson County, NE94.80.986
Grant County, NE94.80.666
Hayes County, NE940.475
Lowest
District of Columbia, DC4.3-0.0587
Prince George's County, MD8.710.247
Oglala Lakota County, SD8.76-2.77
Bronx County, NY9.66-2.12
San Francisco County, CA9.850.442

By material security score

Republican share of the two-party vote, 2016Material security score
Highest
Morgan County, UT84.71.83
Los Alamos County, NM37.71.82
Douglas County, CO59.91.69
Loudoun County, VA411.64
Forsyth County, GA74.91.56
Lowest
East Carroll Parish, LA36.6-3.95
Holmes County, MS16.4-3.64
Ziebach County, SD51-3.46
Martin County, KY90.6-3.33
Sioux County, ND25.5-3.24
States — Republican share of the two-party vote, 2016 is not published for states

By material security score

Republican share of the two-party vote, 2016Material security score
Highest
New Hampshire—1.36
Hawaii—1.14
Vermont—1.07
Minnesota—0.969
Utah—0.93
Lowest
Mississippi—-1.25
Texas—-1.03
Louisiana—-1.02
Arkansas—-0.851
Alabama—-0.811
Metro areas

By republican share of the two-party vote, 2016

Republican share of the two-party vote, 2016Material security score
Highest
Vernal, UT90.80.58
Cullman, AL89.70.0337
Woodward, OK87.90.163
Rexburg, ID87.7-0.458
Elk City, OK86.8-1.36
Lowest
San Francisco-Oakland-Fremont, CA17.81.06
Santa Cruz-Watsonville, CA19.10.54
Taos, NM20.4-0.388
Santa Fe, NM220.235
San Jose-Sunnyvale-Santa Clara, CA22.61.35

By material security score

Republican share of the two-party vote, 2016Material security score
Highest
Los Alamos, NM37.72.07
Heber, UT50.61.79
Nantucket, MA31.31.7
Appleton, WI57.71.55
Manchester-Nashua, NH50.11.44
Lowest
Gallup, NM27.3-4.3
Clarksdale, MS27.6-3.97
Cleveland, MS33.7-3.8
Greenville, MS31.5-3.64
Selma, AL31.1-3.37

Counties furthest from the pattern

Compared with the straight line that best fits all 3,077 counties: the five with far more material security score than their republican share of the two-party vote, 2016 would suggest, and the five with far less.

Republican share of the two-party vote, 2016Material security score
Above the line
Los Alamos County, NM37.71.82
Falls Church city, VA18.51.51
Loudoun County, VA411.64
Broomfield County, CO42.11.51
Douglas County, CO59.91.69
Below the line
East Carroll Parish, LA36.6-3.95
Martin County, KY90.6-3.33
Ziebach County, SD51-3.46
Holmes County, MS16.4-3.64
Madison Parish, LA41.3-3.14

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.

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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+0.2103,066 counties reporting both
After adjusting for density, income and education+0.493the part of the link that is not just how urban, rich and educated a place is
Also adjusting for population size+0.490size taken out as well as density
Also comparing only within each state+0.558each county is compared only with others in its own state, so this is no longer a comparison between states
Giving bigger counties more weight+0.543the adjusted link for the average resident rather than the average county. With this weighting, the data counts for about 286 equally weighted counties
Middle value inside single states+0.179the link worked out inside each of 39 states with at least 20 counties reporting
Using ranks, after adjusting+0.306uses 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 = 1.6e-187. But counties in the same state tend to resemble each other, so the better figure allows for that: p = 3.0e-9. 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 1.8e-186.

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 +0.53 (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 Republican share of the two-party vote, 2016 and Material security score