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County ZIP codes · Nebraska · FIPS 31131

Otoe County, NE ZIP Codes

Otoe County, Nebraska has 20 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 11 of the residential ones lie mainly in Otoe County and 9 mainly in a neighboring county; 14 cross the county line. Median household income ranges from $67,969 in 68443 (Sterling) to $114,408 in 68301 (Adams) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Otoe County?

68301 · Adams: $114k68307 · Avoca: $61k68317 · Bennet: $108k68324 · Burr: $84k68329 · Cook: $78k68344 · Douglas: $89k68346 · Dunbar: $92k68347 · Eagle: $88k68379 · Julian: $41k68382 · Lorton: –68410 · Nebraska City: $72k68413 · Nehawka: $82k68417 · Otoe: $68k68418 · Palmyra: $86k68421 · Peru: $62k68443 · Sterling: $68k68446 · Syracuse: $91k68448 · Talmage: $75k68454 · Unadilla: $84k68455 · Union: $115k68410683016844668443683296841868346684136842168454684486831768455683076834468417683476832468301 · Adams: $114k68307 · Avoca: $61k68317 · Bennet: $108k68324 · Burr: $84k68329 · Cook: $78k68344 · Douglas: $89k68346 · Dunbar: $92k68347 · Eagle: $88k68379 · Julian: $41k68382 · Lorton: –68410 · Nebraska City: $72k68413 · Nehawka: $82k68417 · Otoe: $68k68418 · Palmyra: $86k68421 · Peru: $62k68443 · Sterling: $68k68446 · Syracuse: $91k68448 · Talmage: $75k68454 · Unadilla: $84k68455 · Union: $115k68410683016844668443683296841868346684136842168454684486831768455683076834468417683476832468301 · Adams: $114k68307 · Avoca: $61k68317 · Bennet: $108k68324 · Burr: $84k68329 · Cook: $78k68344 · Douglas: $89k68346 · Dunbar: $92k68347 · Eagle: $88k68379 · Julian: $41k68410 · Nebraska City: $72k68413 · Nehawka: $82k68417 · Otoe: $68k68418 · Palmyra: $86k68421 · Peru: $62k68443 · Sterling: $68k68446 · Syracuse: $91k68448 · Talmage: $75k68454 · Unadilla: $84k68455 · Union: $115k684106830168446684436832968418684136842168448683076834468417
The residential ZIP codes of Otoe County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $71,640 and $90,746.

They carry 20 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 20 residential ZIP codes in Otoe County

11 ZIP codes lie mainly in Otoe County; 9 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Otoe County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
68410 Nebraska City 8,980 63 $72k $183k 100%
68446 Syracuse 2,792 29 $91k $237k 100%
68418 Palmyra 1,109 16 $86k $203k 97%
68454 Unadilla 778 14 $84k $225k 98%
68344 Douglas 544 16 $89k $178k 100%
68346 Dunbar 544 10 $92k $117k 100%
68417 Otoe 273 12 $68k – 100%
68448 Talmage 225 5 $75k $116k 81%
68324 Burr 162 6 $84k $185k 91%
68382 Lorton 72 1,674 – $58k 100%
68379 Julian 42 34 $41k – 93%

Partly in Otoe County

Residential ZIP codes mainly in another county that reach at least 1% into Otoe County, by their share here
In this county
68307 Avoca 336 8 $61k $174k 46%
68347 Eagle 2,508 80 $88k $238k 34%
68329 Cook 579 9 $78k $169k 28%
68413 Nehawka 558 10 $82k $304k 15%
68317 Bennet 1,984 43 $108k $294k 12%
68455 Union 852 22 $115k $321k 7%
68301 Adams 1,549 14 $114k $300k 6%
68421 Peru 987 20 $62k $114k 6%
68443 Sterling 1,200 13 $68k $174k 2%

Download the 20 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

14 ZIP codes of Otoe County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Otoe County and in the neighboring counties
ZIPIn OtoeElsewhere
6834734%Cass County 66%
6831712%Lancaster County 88%
683016%Gage County 77%; Lancaster County 17%
684432%Johnson County 98%
6841897%Cass County 3%
684216%Nemaha County 94%
684557%Cass County 93%
6845498%Cass County 2%
6832928%Johnson County 72%
6841315%Cass County 85%
6830746%Cass County 54%
6844881%Nemaha County 11%; Johnson County 9%
6832491%Johnson County 10%
6837993%Nemaha County 7%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Otoe County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Otoe County's ZIP codes use 2 prefixes: 683 and 684.

Three-digit prefixes of Otoe County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Otoe County's
PrefixSectional centerHereAll codes
683 Lincoln, NE (SCF 683) 10 70
684 Lincoln, NE (SCF 683) 10 56

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.