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Ostmann Elementary

Public Grades K-5

59^th

SchoolDigger Rank ?

of 900 Missouri Elementary Schools

Better than 93% of Missouri elementary schools

Summary

Ostmann Elementary is a public elementary school in O'Fallon, Missouri, serving 399 students in grades K-5. It is part of the Fort Zumwalt School District, which is ranked 37th out of 367 districts in the state and has a 5-star rating.

Ostmann Elementary consistently ranks in the top 15% of Missouri elementary schools, with strong academic performance across all grade levels and subjects. In the 2024-2025 school year, the school ranked 59th out of 900 Missouri elementary schools and received a 5-star rating from SchoolDigger. Ostmann's students significantly outperform their peers in the district and state in Mathematics and English Language Arts, with proficiency rates as high as 63.5% in 3rd-grade Mathematics, compared to 46.9% for the district and 41.4% for the state.

Ostmann Elementary's success may be attributed to its higher per-student spending and lower student-teacher ratios compared to nearby schools, such as John Weldon Elementary in the Francis Howell R-III district. Additionally, the school serves a relatively affluent student population, with a low percentage of students receiving free or reduced-price lunch, which may also contribute to its strong academic performance.

362

Students ?

12.1

Student/teacher ratio ?

$15,878

Per pupil spending ?

8.6%

Free/discounted lunch ?

200 Meriwether Lewis Dr
O Fallon, MO 63368-8385

(636) 281-3382

District: Fort Zumwalt School District

Students who attend Ostmann Elementary usually attend:

Middle:	Ft. Zuwmalt West Middle
High:	Ft. Zumwalt West High

Racial breakdown:

White:

80.1%

Asian:

8.3%

African American:

3.9%

See top rated Missouri elementary schools

Compare Ostmann Elementary to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 89th percentile in 2015 → 93rd in 2025

Strengths

✓Test scores above the Missouri average (67% vs 42% meeting standards)

✓Ranks in the top 7% of Missouri elementary schools

✓Among the top-ranked schools in Fort Zumwalt School District

Students meeting standards (2024-2025) ?

This school67%

District avg52%

Missouri avg42%

59^th of 900

Missouri public elementary schools ?

Top 7%▲ up 5 pts since 2015

From top 11% (2015) to top 7% (2025)

See the entire ranking list of Missouri Elementary Schools →

★★★★★

SchoolDigger rating ?

2^nd of 14Elementary Schools in the Fort Zumwalt School District

37^th of 367Fort Zumwalt School District among Missouri districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Missouri percentile	Rating
2025	91.2	59 of 900	93.4%	★★★★★
2024	86.0	91 of 906	90.0%	★★★★★
2023	84.4	109 of 898	87.9%	★★★★☆
2022	90.2	58 of 908	93.6%	★★★★★
2021	90.9	52 of 901	94.2%	★★★★★
2019	88.7	69 of 1052	93.4%	★★★★★
2018	83.1	130 of 1045	87.6%	★★★★☆
2017	88.5	67 of 1032	93.5%	★★★★★
2016	83.0	123 of 865	85.8%	★★★★☆
2015	85.0	120 of 1058	88.7%	★★★★☆
2014	82.6	131 of 1089	88.0%	★★★★☆
2013	80.3	137 of 1108	87.6%	★★★★☆
2012	70.0	286 of 1085	73.6%	★★★★☆
2011	63.6	388 of 1088	64.3%	★★★☆☆
2010	58.0	437 of 1066	59.0%	★★★☆☆
2009	55.5	469 of 1053	55.5%	★★★☆☆
2008	62.3	348 of 1084	67.9%	★★★☆☆
2007	54.1	495 of 1080	54.2%	★★★☆☆
2006	65.4	302 of 1074	71.9%	★★★★☆

Disabled

Year	Avg score	Statewide rank	Missouri percentile	Rating
2019	76.4	53 of 302	82.5%	★★★★☆

White

Year	Avg score	Statewide rank	Missouri percentile	Rating
2025	86.0	76 of 666	88.6%	★★★★☆
2024	77.2	129 of 668	80.7%	★★★★☆
2023	86.9	65 of 673	90.3%	★★★★★
2022	81.1	107 of 675	84.1%	★★★★☆
2021	87.4	66 of 691	90.4%	★★★★★
2019	85.0	86 of 917	90.6%	★★★★★
2018	80.3	128 of 898	85.7%	★★★★☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

White (2025)89th percentile-5 vs school

Disabled (2019)82nd percentile-11 vs school

By subject vs Missouri (2024-2025) ?

English Language Arts70%+27 vs state

Mathematics65%+24 vs state

5.0

2 ratings · 2 written reviews

5★2

4★0

3★0

2★0

1★0

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What people are saying

by a parent
Tuesday, October 16, 2012

Ostmann Elementary is exactly what you want in an elementary school for your kids! Small class sizes and outstanding teachers! It has a "fun" feeling as soon as you walk through the door. My kids love to go to school! I couldn't ask for anything more as a parent. Close Quote

by a parent
Saturday, August 1, 2009

The teachers are excellent! The school is great. They welcome parent interaction and the teachers always keep the childrens needs first! This school is the best! I would recommend this school to anyone. Close Quote

Schools Near Ostmann Elementary

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

School													Students/Teachers											Ranking (2025)				Ranking (2024)				MAP Mathematics (2025)			MAP Science (2025)	MAP English Language Arts (2025)			Per Pupil Expenditures (2025)
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	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	MAP Mathematics 3rd Grade	MAP Mathematics 4th Grade	MAP Mathematics 5th Grade	MAP Science 5th Grade	MAP English Language Arts 3rd Grade	MAP English Language Arts 4th Grade	MAP English Language Arts 5th Grade	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Ostmann Elementary	Public	K-5	200 Meriwether Lewis Dr	O Fallon	63368	St. Charles County	Fort Zumwalt School District	No	No	No	No	(636) 281-3382	362	30	12.1	8.6%	290 (80.1%)	14 (3.9%)	13 (3.6%)	30 (8.3%)	2 (0.6%)	1 (0.3%)	12 (3.3%)	91.2	59^th of 900 public elementary schools	93.4%		86	91^st of 906 public elementary schools	90.0%	32	63.5	68.8	61.8		74.4	67.5		$15,878	$85	$15,793
Twin Chimneys Elementary	Public	K-5	7396 Twin Chimneys Blvd	O Fallon	63368	St. Charles County	Fort Zumwalt School District	No	No	No	No	(636) 240-0093	488	38	12.8	8.2%	333 (68.2%)	26 (5.3%)	16 (3.3%)	74 (15.2%)	2 (0.4%)	0 (0.0%)	37 (7.6%)	85.2	115^th of 900 public elementary schools	87.2%		82.5	131^st of 906 public elementary schools	85.5%	16	57.3	60.8	56.8	62.4	59.7	57.3	70.3	$14,611	$138	$14,473
Dardenne Elementary	Public	K-5	2621 Hwy K	O Fallon	63368	St. Charles County	Fort Zumwalt School District	No	No	No	Yes	(636) 978-4001	445	39	11.5	46.1%	261 (58.7%)	22 (4.9%)	97 (21.8%)	19 (4.3%)	0 (0.0%)	8 (1.8%)	38 (8.5%)	50.6	457^th of 900 public elementary schools	49.2%		43.9	519^th of 906 public elementary schools	42.7%	62	29.6	49.2	38.0		34.1	47.8	44.6	$15,244	$105	$15,139
Emge Elementary	Public	K-5	250 Fallon Pkwy	O Fallon	63368	St. Charles County	Fort Zumwalt School District	No	No	No	No	(636) 281-0261	348	27	12.9	11.8%	253 (72.7%)	23 (6.6%)	23 (6.6%)	26 (7.5%)	2 (0.6%)	0 (0.0%)	21 (6.0%)	94.4	31^st of 900 public elementary schools	96.6%		90.3	62^nd of 906 public elementary schools	93.2%	31	69.0	69.9	74.6	68.5	78.1		67.1	$15,827	$92	$15,735
Crossroads Elementary	Public	K-5	7500 Town Square	Dardenne Prairie	63368	St. Charles County	Wentzville R-IV	No	No	No	No	(636) 625-4537	757	60	12.6	15.2%	483 (63.8%)	61 (8.1%)	45 (5.9%)	118 (15.6%)	3 (0.4%)	0 (0.0%)	47 (6.2%)	81.6	145^th of 900 public elementary schools	83.9%		85.1	100^th of 906 public elementary schools	89.0%	45	62.8	65.0	48.1	49.5	53.5	71.0	56.3	$14,843	$405	$14,437
Pheasant Point Elementary	Public	K-5	3450 Pheasant Meadow Dr	O Fallon	63368	St. Charles County	Fort Zumwalt School District	No	No	No	No	(636) 379-0173	428	33	12.9	14.3%	276 (64.5%)	30 (7.0%)	18 (4.2%)	78 (18.2%)	0 (0.0%)	0 (0.0%)	26 (6.1%)	87.7	96^th of 900 public elementary schools	89.3%		86	92^nd of 906 public elementary schools	89.8%	4	58.3	64.6	54.8	68.9	60.9		67.5	$16,069	$93	$15,977
Rock Creek Elementary	Public	K-5	8970 Mexico Rd	O Fallon	63366	St. Charles County	Fort Zumwalt School District	No	No	No	No	(636) 978-1611	408	33	12.4	23.0%	284 (69.6%)	29 (7.1%)	33 (8.1%)	27 (6.6%)	0 (0.0%)	3 (0.7%)	32 (7.8%)	80.7	154^th of 900 public elementary schools	82.9%		72.7	225^th of 906 public elementary schools	75.2%	71	53.3	64.1	58.9	57.3	54.7	57.4	54.0	$16,637	$173	$16,464
Prairie View Elementary	Public	K-5	1550 Feise Rd	O Fallon	63368	St. Charles County	Wentzville R-IV	No	No	No	Yes	(636) 625-2494	696	51	13.6	24.6%	463 (66.5%)	51 (7.3%)	69 (9.9%)	48 (6.9%)	0 (0.0%)	0 (0.0%)	65 (9.3%)	67.3	282^nd of 900 public elementary schools	68.7%		67	283^rd of 906 public elementary schools	68.8%	1	41.5	49.6	52.4	55.6	49.9	40.6	54.0	$13,232	$334	$12,898
John Weldon Elementary	Public	PK, KG-5	7370 Weldon Spring Rd	Dardenne Prairie	63368	St. Charles County	Francis Howell R-III	No	No	No	No	(636) 851-5500	640	49	13.1	9.1%	470 (73.4%)	33 (5.2%)	32 (5.0%)	77 (12.0%)	1 (0.2%)	1 (0.2%)	26 (4.1%)	88.4	87^th of 900 public elementary schools	90.3%		88.2	73^rd of 906 public elementary schools	91.9%	14	52.8	67.3	72.8	70.0	58.7	62.7	70.9	$14,870	$385	$14,485
Progress South Elementary	Public	K-5	201 Knaust Rd	St Peters	63376	St. Charles County	Fort Zumwalt School District	No	No	No	No	(636) 272-2721	642	50	12.8	21.5%	478 (74.5%)	60 (9.3%)	34 (5.3%)	29 (4.5%)	1 (0.2%)	2 (0.3%)	38 (5.9%)	75.5	200^th of 900 public elementary schools	77.8%		75.4	193^rd of 906 public elementary schools	78.7%	7	48.5	50.4	61.0	53.2	50.4	54.0	61.0	$15,308	$598	$14,710

Frequently Asked Questions about Ostmann Elementary

What is the racial makeup of Ostmann Elementary?

Students at Ostmann Elementary are 80% White, 8% Asian, 4% African American, 4% Hispanic, 3% Two or more races.

What district is Ostmann Elementary in?

Fort Zumwalt School District

Is Ostmann Elementary a good school?

Yes. Ostmann Elementary ranks in the top 6.6% of Missouri elementary schools.

How many students attend Ostmann Elementary?

In the 2024-25 school year, 362 students attended Ostmann Elementary.

What schools do graduates of Ostmann Elementary attend?

Students who attend Ostmann Elementary usually go on to attend:

Middle : Ft. Zuwmalt West Middle
High : Ft. Zumwalt West High

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Schools in O Fallon, MO

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Missouri Department of Elementary and Secondary Education.

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.