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Pennsylvania State House District 166

Pennsylvania State House District 166

Pennsylvania · Latest: 2024↓ R+2.7 vs 2020

Safe Democratic — 66K residents

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Pennsylvania State House District 166 is a state house district that has a population of 66,223. In the 2024 presidential election, it voted Democratic with a margin of D+23.9. Akashic Edge tracks 5 presidential elections here, dating back to 2008.

Pennsylvania State House District 166 Presidential Election Results, 2008–2024
YearDem %Rep %MarginSwing
202461.5%37.6%D+23.9R+2.7
202062.7%36.1%D+26.6D+4.8
201659.1%37.3%D+21.8D+11.2
201255.3%44.7%D+10.6R+4.3
200857.0%42.1%D+14.9—
Political Identity

What defines PA-HD-166?

It has a working-class, predominantly white electorate — strong Republican base territory.

Historian Query

Ask the Historian

Explore PA-HD-166's political evolution with the Historian
Automated Readout

Key Insights

High-confidence patterns distilled from this geography's election history.
  • Has voted Democratic in the last 5 presidential elections
  • Latest election (2024) was a Democratic landslide with a 23.9% margin
  • Turnout decreased by 64.4 percentage points since the previous presidential election
Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
PA-HD-166Census ACS 2024
Census race profile
Major Census race and ethnicity groups shown as a share of total population.
Expand rows for ancestry detail
White (Non-Hispanic) 79.9%Asian 6.7%Black 5.7%Multiracial 3.8%Hispanic 3.7%
GroupPA-HD-166StateNational
White (Non-Hispanic)
79.9%73.0%57.4%
Asian
6.7%3.8%6.0%
Black / African American
5.7%10.6%12.2%
Multiracial / Other
3.8%3.6%4.0%
Hispanic / Latino
3.7%8.7%19.3%
Native American / Alaska Native
0.1%0.2%0.9%
Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Detailed ancestry data unavailable for this geography.

Who lives in Pennsylvania State House District 166? 66,223 residents as of the 2020 Census.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.
PA-HD-166 vs Pennsylvania vs National66K residents
Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population
Local vs state vs U.S.
66K
local
66KState 13.0MNational 334.9M
Share of U.S. population
Local vs state vs U.S.
0.02%
local
0.02%National 100%
Voting-age population
Local vs state vs U.S.
79.0%
local
79.0%State 76.3%National 75.7%
Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income
Local vs state vs U.S.
N/A
local
N/AState $80,054National $83,960
Poverty rate
Local vs state vs U.S.
N/A
local
N/AState 11.7%National 12.5%
College degree
Local vs state vs U.S.
N/A
local
N/AState 35.2%National 35.6%
Homeownership
Local vs state vs U.S.
N/A
local
N/AState 69.3%National 65.2%
Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age
Local vs state vs U.S.
N/A
local
N/AState 41.2 yrsNational 39.1 yrs
Age 18–29
Local vs state vs U.S.
N/A
local
N/AState 15.2%National 15.7%
Age 65+
Local vs state vs U.S.
N/A
local
N/AState 19.5%National 17.0%
Foreign born
Local vs state vs U.S.
N/A
local
N/AState 7.7%National 14.1%
Non-English at home
Local vs state vs U.S.
N/A
local
N/AState 12.4%National 22.2%
English only
Local vs state vs U.S.
N/A
local
N/AState 87.6%National 77.8%
Voter Turnout

Turnout in PA-HD-166

Estimated using 2020 Census voting-age population.
2024 Turnout
81.1%
vs Previous
-64.4pp
Voting-Age Pop
52,297
History
2008–2024
Competitiveness

How competitive is PA-HD-166?

Safe DAvg margin: D+24.1 (last 3 elections)
2008
D+14.9
2012
D+10.6
2016
D+21.8
2020
D+26.6
2024
D+23.9
Elasticity
16.0pp
margin range
Party Flips
0
last 30 years
5-Elec Avg
D+19.6

Other Pennsylvania State House Districts

202 total
NameMargin ↓
PA-HD-200D+89.3
PA-HD-201D+88.7
PA-HD-190D+87.7
PA-HD-191D+85.6
PA-HD-192D+85.2
PA-HD-198D+84.7
PA-HD-195D+83.6
PA-HD-188D+83.0
PA-HD-10D+82.0
PA-HD-181D+79.3
PA-HD-24D+77.1
PA-HD-186D+76.0
PA-HD-182D+74.4
PA-HD-175D+67.1
PA-HD-197D+65.3
PA-HD-23D+63.5
PA-HD-19D+62.1
PA-HD-34D+62.0
PA-HD-154D+59.4
PA-HD-179D+59.3
PA-HD-164D+55.4
PA-HD-194D+55.3
PA-HD-203D+54.5
PA-HD-180D+46.7
PA-HD-148D+46.6
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