| Index | South Sioux City | Nebraska | National |
| Average Test Scores | 46% | 53% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 780 | 79,221 |
| Total private schools | 1 | 182 | 24,874 |
| Total post-secondary schools | n/a | 56 | 7,963 |
| Index | South Sioux City | Nebraska | National |
| Completed 8th grade | 70.1% | 88.4% | 84.3% |
| Completed high school | 65.2% | 87.2% | 83.0% |
| Completed some college | 35.5% | 63.7% | 59.4% |
| Completed associate degree | 17.3% | 40.1% | 38.5% |
| Completed bachelors | 12.5% | 30.0% | 30.3% |
| Completed masters | 4.0% | 9.9% | 11.5% |
| Completed professional degree | 0.7% | 2.9% | 3.3% |
| Completed doctorate | 0.4% | 1.2% | 1.3% |
There are a total of n/a public schools, 1 private schools and n/a post-secondary schools in South Sioux City. Using the proficiency score averages, the average test scores for South Sioux City, NE schools is 46%. The average student to teacher ratio is n/a. In South Sioux City, NE, an average of 70.1% of students have completed 8th grade and an average of 65.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lawton, IA | 1,090 | 92% | 91.7% |
| Bronson, IA | 334 | 80% | 65.6% |
| Hinton, IA | 837 | 78% | 62.5% |
| Sergeant Bluff, IA | 5,066 | 76% | 58.0% |
| Ponca, NE | 978 | 73% | 52.6% |
| South Sioux City, NE | 13,187 | 46% | 4.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Fulton, MO | 13,185 | 47% | 2.3% |
| Panama City Beach, FL | 13,190 | 64% | 32.9% |
| Cornelius, OR | 13,194 | 33% | 31.9% |
| Harrison, OH | 13,180 | 79% | 64.4% |
| Jacksonville, AL | 13,194 | 59% | 23.4% |
| South Sioux City, NE | 13,187 | 46% | 4.5% |
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