Residential - Vacant LandResidential
21ST AVE
ISLE OF PALMS, SC 29451
0
Baths
0.45 ac
Lot SizeThe size of the land the home sits on, from county records.
Climate Risk
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.68 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.84%
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential - Vacant Land
CountyCHARLESTON
Lot (acres)The size of the land the home sits on, from county records.0.45
PoolWhether the property has a pool, and what kind, such as in-ground.No
Transaction History(2)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EMH
Sullivan's Island Elementary School
Elementary · Grades PK–5 · 3.9 mi
Moultrie Middle SchoolA+
Middle · Grades 6–8 · 5.2 mi
Wando High SchoolA
High · Grades 9–12 · 6.7 mi
District: Charleston County School District
Neighborhood · ZIP 29451These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.130
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.291
Index scale: 100 = US average (tick). Lower is better.
Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.55%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.5,565
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.443 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$158,034
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$228,227
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%
Owner Tools
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Claim this homeData by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
21st Ave measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Has a bigger lot than 81% of homes in Isle of Palms 29451
How it measures up in Isle of Palms 29451
The dot is this home. The mark in the middle is the typical home in Isle of Palms 29451.
Lot size0.45 ac
SmallerTypical 0.25 acBigger
Bigger than 81% of homes nearby
| Measure | This home | Isle of Palms 29451 | Charleston County |
|---|---|---|---|
| Lot sizebigger than | 0.45 ac | 81% of homes | 79% of homes |
More homes on 21st Ave
- 22 21st Ave2 bd · 1.5 ba · 1,460 ft² · Sold $1.3M · Sep 2025
- 19 21st Ave$3.6M3 bd · 2 ba · 1,608 ft² · Sold $3.3M · Apr 2025
- 32 21st Ave$2.1M3 bd · 3 ba · 1,956 ft² · Sold $1.8M · Aug 2024
- 31 21st Ave$2.5M5 bd · 5 ba · 4,246 ft² · Sold $2.7M · Nov 2022
- 21 21st Ave$2.4M3 bd · 2 ba · 1,519 ft² · Sold $1.8M · Feb 2022
- 25 21st Ave$1.4M2 bd · 1 ba · 1,080 ft² · Sold $663K · Mar 2021
- 20 21st Ave$1M2 bd · 1 ba · 816 ft² · Sold $560K · Jul 2020
- 39 21st Ave$5.3M3 bd · 2.5 ba · 2,252 ft² · Sold $2M · Dec 2018
- 28 21st Ave3 bd · 2 ba · 1,393 ft² · Sold $500K · Jul 2017
- 27 21st Ave$1M2 bd · 1 ba · 816 ft² · Sold $270K · May 2012
- 16 21st Ave$2.3M0.38 ac · Sold $450K · Oct 2010
- 30 21st Ave$1.7M3 bd · 2 ba · 1,827 ft² · Sold $586K · Mar 2005
Closest homes
- 9 22nd Ave$3.5M182 ft · 5 bd · 4.5 ba · 3,588 ft² · Sold $3.4M · Nov 2025
- 11 22nd Ave202 ft · 4 bd · 2 ba · 2,544 ft² · Sold $1.3M · Sep 2021
- 7 22nd Ave$2.5M193 ft · 6 bd · 2 ba · 2,544 ft² · Sold $551K · May 2017
- 13 22nd Ave246 ft · 6 bd · 4.5 ba · 2,544 ft² · Sold $1.5M · Sep 2024
- 5 22nd Ave$1.4M228 ft · 2 bd · 2 ba · 1,556 ft² · Sold $600K · Oct 2015
- 15 22nd Ave306 ft · 6 bd · 3 ba · 2,544 ft² · Sold $1.4M · Jun 2024
- 3 22nd Ave279 ft · 6 bd · 3 ba · 2,544 ft² · Sold Jul 2011
- 4 Ocean Park Ct$1.6M329 ft · 3 bd · 2 ba · 1,543 ft² · Sold Jan 2023
More homes in Isle Of Palms 29451
- 914 Ocean Blvd$6.5M7 bd · 7.5 ba · 4,930 ft² · Sold $6.5M · Oct 2026
- 28 22nd Ave$4.1M3 bd · 1 ba · 1,025 ft² · Sold $4M · Oct 2026
- 22 Morgans Cove Dr$2.2M4 bd · 4 ba · 2,536 ft² · Sold $2M · Oct 2026
- 8 29th Ave$5M5 bd · 5.5 ba · 4,805 ft² · Sold $4.9M · Oct 2026
- 42 Twin Oaks Ln$1.7M3 bd · 2 ba · 1,548 ft² · Sold $1.7M · Oct 2026
- 1116 Ocean Blvd$867K1 bd · 1 ba · 800 ft² · Sold Oct 2026
- 1116 Ocean Blvd$1.3M3 bd · 2.5 ba · 1,600 ft² · Sold Oct 2026
- 1116 Ocean Blvd$1.5M3 bd · 2.5 ba · 1,600 ft² · Sold Oct 2026
- 1116 Ocean Blvd$1.4M3 bd · 2.5 ba · 1,600 ft² · Sold Oct 2026
- 1116 Ocean Blvd$1.6M3 bd · 2.5 ba · 1,600 ft² · Sold Oct 2026
- 30 Morgan Place Dr$4.3M5 bd · 6 ba · 4,656 ft² · Sold $4M · Oct 2026
- 37 Seagrass Ln$2.5M5 bd · 3.5 ba · 3,040 ft² · Sold $2.4M · Oct 2026
Assigned schools
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