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Best High Schools in Zip Code 28110

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At a glance

Schools

2,882

Students

5-star school

Top rankedUnion County Early College24^th of 662 North Carolina high schools

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Biggest riser

Sun Valley High up 25 spots statewide this year

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Summary:

Zip code 28110 in Monroe, North Carolina, is served by three public high schools—Sun Valley High, Piedmont High, and Union County Early College—all part of the highly rated Union County Public Schools district, and together they enroll nearly 2,900 students in grades 9 through 12.

The academic standout is Union County Early College, which ranks #24 in North Carolina and earns a 5-star rating, with proficiency rates above 97% in Biology and English II and a perfect 100% in Math III—outperforming the district and state by wide margins. Despite having the smallest enrollment (340) and the highest student-teacher ratio, its specialized early-college model drives exceptional results. Among the traditional high schools, Piedmont High is the stronger option, ranked #203 statewide (69th percentile) with steady year-over-year improvement and above-state proficiency in every subject, including a notable 15-point jump in Biology. Sun Valley High is the lowest-ranked school (#314, 53rd percentile), but it showed the largest single-year improvement in the zip code, with Math I proficiency soaring from 24.5% to 51.5%.

When comparing the three, Sun Valley High faces the most challenges: it has the highest free/reduced lunch rate (46.15%) and its Biology and Math I scores remain below district averages. Piedmont High has the highest chronic absenteeism rate (26.5%) yet still outperforms Sun Valley in every subject, while Union County Early College posts the lowest absenteeism (6.1%). Graduation rates at the traditional high schools—93.3% for Sun Valley and 92.6% for Piedmont—exceed the state average of 88.8%, even as Math I remains the biggest academic hurdle. Spending differences are minimal ($7,707–$8,375 per student) and do not track with performance, showing that school structure and student selectivity matter more than funding. For parents, this zip code offers clear options: an elite early college for highly motivated students and two solid comprehensive high schools that are improving, each with distinct strengths and areas for growth.

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				EOC Biology (2026)	EOC English II (2026)	EOC Math I (2026)	EOC Math III (2026)	Per Pupil Expenditures (2019)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients (2025)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	EOC Biology End of Course	EOC English II End of Course	EOC Math I End of Course	EOC Math III End of Course	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Piedmont High	Public	9-12	3006 Sikes Mill Road	Monroe	28110	Union County	Union County Public Schools	No	No	No	No	(704) 296-3170	1,270	67	18.8	38.3%	822 (64.7%)	102 (8.0%)	291 (22.9%)	27 (2.1%)	1 (0.1%)	0 (0.0%)	27 (2.1%)	67.8	203^rd of 662 public high schools	69.3%		62.6	215^th of 641 public high schools	66.5%	12	68.5	72.7	55.8	86.0	$8,326	$606	$7,720
Sun Valley High	Public	9-12	5211 Old Charlotte Hwy	Monroe	28110	Union County	Union County Public Schools	No	No	No	No	(704) 296-3020	1,272	79	16.1	46.1%	589 (46.3%)	300 (23.6%)	289 (22.7%)	24 (1.9%)	1 (0.1%)	1 (0.1%)	68 (5.3%)	52.4	314^th of 662 public high schools	52.6%		45.1	339^th of 641 public high schools	47.1%	25	49.3	64.9	51.5	80.5	$8,375	$469	$7,906
Union County Early College	Public	9-12	4209A Old Charlotte Hwy	Monroe	28110	Union County	Union County Public Schools	No	No	No	No	(704) 290-1565	340	15	23.4	35.0%	162 (47.6%)	25 (7.4%)	125 (36.8%)	21 (6.2%)	1 (0.3%)	1 (0.3%)	5 (1.5%)	93.4	24^th of 662 public high schools	96.4%		95.6	12^th of 641 public high schools	98.1%	12	97.5	97.1	89.5	100.0	$7,707	$125	$7,583

Cities Near Zip Code 28110

City	Distance	# of Schools	Statewide Rank
Monroe	1.21 mi	24	153^rd
Indian Trail	5.54 mi	8	71^st
Wingate	5.74 mi	2	129^th
Marshville	8.12 mi	4	263^rd
Waxhaw	9.03 mi	12	17^th

See the top NC North Carolina cities

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the North Carolina Dept of Public Instruction.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.