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Unity, SC

Full City Profile · South Carolina · Lancaster County County

1.6 /5.0
D Poor
655 Population 310/sq mi density
$37,037 Median Income $17,844 per capita
61°F Avg Temperature 310 sunny days/yr
403 Violent Crime/100K 3,077 property/100K
D
Overall
1.6 / 5.0
Below average overall score based on economy, affordability, safety and education
C+
Economy
2.5 / 5.0
$37,037 median income, 0.0% unemployment
F
Safety
1.0 / 5.0
403 violent crimes/100K (6% above avg)
F
Education
1.3 / 5.0
3.3% bachelor's degree or higher
Unity enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 42°F in January while summers reach 80°F in July. The area gets 310 sunny days per year. Annual precipitation totals 47.8 inches. The area receives 2.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.

Temperature

42°F Jan (5°C) 80°F Jul (27°C)
Annual Average60.9°F
13% above US avg
January Average42°F (5°C)
July Average80°F (27°C)
Sunny Days310 days/yr

Geography

Elevation621 ft (189 m)
Area2.1 sq mi (5.5 km²)
Population Density310/sq mi
Coordinates34.8016°N, 80.6918°W
TimezoneAmerica/New_York
CountyLancaster County County
Nearest AirportCharlotte/Douglas International (CLT)
32 miles away

Precipitation & Snow

Annual Rainfall 47.8"
26% above US avg
Snowfall 2.1"
Wettest Month (Mar) 4.76"
Driest Month (Apr) 3.03"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score79.4 / 100
Social Vulnerability42.1 / 100
Community Resilience52.5 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Relatively Low
Earthquake Relatively Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively Low
Strong Wind Relatively High
Heat Wave Relatively Low
Winter Weather Relatively Low
Lightning Relatively Moderate
Ice Storm Relatively High
Drought Very Low
Cold Wave Relatively Moderate
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

29 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.9. Most recent: M2.5 on Aug 23, 2025.

Apr 13, 1998 9 km S of Kershaw, South Carolina M3.9 38 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.6 71 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.5 71 km
Jun 26, 2022 6 km E of Elgin, South Carolina M3.4 71 km
May 9, 2022 5 km ESE of Elgin, South Carolina M3.3 72 km
Jun 5, 1998 4 km SSE of Mooresville, North Carolina M3.2 84 km
Aug 23, 2025 3 km N of Coronaca, South Carolina M3.0 141 km
Aug 4, 2007 12 km ENE of Lake Lure, North Carolina M3.0 148 km
Mar 21, 2011 9 km S of Cordova, North Carolina M2.9 79 km
Feb 18, 2005 7 km ENE of Irmo, South Carolina M2.9 85 km
Jan 29, 1994 12 km NNE of Alcolu, South Carolina M2.9 117 km
Aug 23, 2025 3 km NNW of Coronaca, South Carolina M2.9 142 km
May 10, 2022 5 km E of Elgin, South Carolina M2.8 70 km
Aug 14, 2025 7 km N of Columbus, North Carolina M2.7 149 km
Mar 21, 2004 16 km ENE of Lake Lure, North Carolina M2.7 146 km
Aug 17, 2021 6 km N of Morganton, North Carolina M2.7 143 km
Mar 9, 2024 5 km E of Elgin, South Carolina M2.7 71 km
May 31, 2021 4 km SW of Summit, South Carolina M2.6 123 km
May 10, 2022 6 km E of Elgin, South Carolina M2.6 70 km
Jan 5, 2022 5 km SW of Lugoff, South Carolina M2.6 69 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

14 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Ian (2022, Cat 1).

Year Name Category Closest
2022 Ian Category 1 216 km
2020 Isaias Category 1 225 km
2019 Dorian Category 3 285 km
2018 Florence Category 1 228 km
2016 Matthew Category 2 213 km
2004 Charley Category 1 214 km
2004 Gaston Category 1 224 km
1999 Floyd Category 2 271 km
1998 Bonnie Category 3 277 km
1996 Fran Category 3 187 km
1996 Bertha Category 2 271 km
1989 Hugo Category 4 39 km
1985 Bob Category 1 290 km
1984 Diana Category 4 237 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tornado History

410 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 26 fatalities, 487 injuries.

Date Rating Distance Fatalities
May 5, 1989 EF4 20 km 1
Mar 28, 1984 EF4 75 km 0
Mar 28, 1984 EF4 75 km 5
Mar 28, 1984 EF4 88 km 7
Mar 28, 1984 EF4 31 km 0
Apr 8, 1957 EF4 22 km 4
Sep 7, 2004 EF3 60 km 0
Aug 16, 1994 EF3 78 km 0
Mar 27, 1994 EF3 52 km 0
Oct 18, 1990 EF3 20 km 0
Mar 28, 1984 EF3 86 km 0
Apr 18, 1969 EF3 67 km 0
Mar 31, 2022 EF2 53 km 0
May 5, 2020 EF2 38 km 0
Apr 13, 2020 EF2 66 km 0
Feb 6, 2020 EF2 78 km 0
Feb 6, 2020 EF2 78 km 0
Jan 11, 2020 EF2 44 km 0
Mar 3, 2012 EF2 51 km 0
Nov 16, 2011 EF2 45 km 3
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: BURNING UNIT (5,567 ac, 2010).

Year Name Acres Distance
2010 BURNING UNIT 5,567 69 km
2009 UNNAMED 5,322 86 km
1991 UNNAMED 3,968 86 km
2010 C-94-95 133 RX 3,192 99 km
1991 UNNAMED 3,094 50 km
2010 UNNAMED 2,909 98 km
1985 UNNAMED 2,743 86 km
2015 UNNAMED 2,690 71 km
2009 UNNAMED 2,458 75 km
2017 UNNAMED 2,395 94 km
2017 UNNAMED 2,362 90 km
2008 05/05 RX BURN 2,351 45 km
2013 UNNAMED 2,274 75 km
2010 C-142 RX 2,149 100 km
2007 06-09 RX BURN 2,054 47 km
2022 SCCRR-FY22-RX-PRESCRIBED FIRE 2,039 47 km
2021 UNNAMED 2,024 94 km
2000 UNNAMED 1,989 66 km
2016 UNNAMED 1,964 69 km
2009 UNNAMED 1,918 71 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 42°F (5°C) 4.5 in Coldest
February 45°F (7°C) 3.7 in
March 52°F (11°C) 4.8 in Wettest
April 60°F (16°C) 3.0 in Driest
May 68°F (20°C) 3.5 in
June 75°F (24°C) 4.2 in
July 80°F (27°C) 4.8 in Warmest
August 78°F (25°C) 4.5 in
September 72°F (22°C) 4.1 in
October 61°F (16°C) 3.8 in
November 52°F (11°C) 3.3 in
December 44°F (7°C) 3.4 in

Unity has a seasonal temperature swing of 38°F / from 42°F in January to 80°F in July. Total annual precipitation is 47.4 inches, with March being the wettest month (4.8") and April the driest (3.0").

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